wp_update_user

The timeline below displays how wordpress function wp_update_user has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 6.3

/**
 * Updates a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $userdata_raw = $userdata;
    $user_id = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$user_id) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($user_id);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($user_id, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (is_wp_error($user_id)) {
        return $user_id;
    }
    $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $switched_locale = false;
    if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
        $switched_locale = switch_to_user_locale($user_id);
    }
    if (!empty($send_password_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $pass_change_email = array(
            'to' => $user['user_email'],
            /* translators: Password change notification email subject. %s: Site title. */
            'subject' => __('[%s] Password Changed'),
            'message' => $pass_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's password is changed.
         *
         * @since 4.3.0
         *
         * @param array $pass_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients. Add emails in a comma separated string.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###EMAIL###       The user's email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
        $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
        wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
    }
    if (!empty($send_email_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $email_change_email = array(
            'to' => $user['user_email'],
            /* translators: Email change notification email subject. %s: Site title. */
            'subject' => __('[%s] Email Changed'),
            'message' => $email_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's email is changed.
         *
         * @since 4.3.0
         *
         * @param array $email_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###NEW_EMAIL###   The new email address.
         *         - ###EMAIL###       The old email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
        $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
        $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
        wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
    }
    if ($switched_locale) {
        restore_previous_locale();
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $user_id) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            /*
             * Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
             * If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
             */
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($user_id, $remember);
        }
    }
    /**
     * Fires after the user has been updated and emails have been sent.
     *
     * @since 6.3.0
     *
     * @param int   $user_id      The ID of the user that was just updated.
     * @param array $userdata     The array of user data that was updated.
     * @param array $userdata_raw The unedited array of user data that was updated.
     */
    do_action('wp_update_user', $user_id, $userdata, $userdata_raw);
    return $user_id;
}

WordPress Version: 6.2

/**
 * Updates a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $user_id = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$user_id) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($user_id);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($user_id, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (is_wp_error($user_id)) {
        return $user_id;
    }
    $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $switched_locale = false;
    if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
        $switched_locale = switch_to_user_locale($user_id);
    }
    if (!empty($send_password_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $pass_change_email = array(
            'to' => $user['user_email'],
            /* translators: Password change notification email subject. %s: Site title. */
            'subject' => __('[%s] Password Changed'),
            'message' => $pass_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's password is changed.
         *
         * @since 4.3.0
         *
         * @param array $pass_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients. Add emails in a comma separated string.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###EMAIL###       The user's email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
        $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
        wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
    }
    if (!empty($send_email_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $email_change_email = array(
            'to' => $user['user_email'],
            /* translators: Email change notification email subject. %s: Site title. */
            'subject' => __('[%s] Email Changed'),
            'message' => $email_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's email is changed.
         *
         * @since 4.3.0
         *
         * @param array $email_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###NEW_EMAIL###   The new email address.
         *         - ###EMAIL###       The old email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
        $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
        $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
        wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
    }
    if ($switched_locale) {
        restore_previous_locale();
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $user_id) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($user_id, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 6.1

/**
 * Updates a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $user_id = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$user_id) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($user_id);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($user_id, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (is_wp_error($user_id)) {
        return $user_id;
    }
    $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $switched_locale = false;
    if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
        $switched_locale = switch_to_locale(get_user_locale($user_id));
    }
    if (!empty($send_password_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $pass_change_email = array(
            'to' => $user['user_email'],
            /* translators: Password change notification email subject. %s: Site title. */
            'subject' => __('[%s] Password Changed'),
            'message' => $pass_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's password is changed.
         *
         * @since 4.3.0
         *
         * @param array $pass_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients. Add emails in a comma separated string.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###EMAIL###       The user's email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
        $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
        wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
    }
    if (!empty($send_email_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $email_change_email = array(
            'to' => $user['user_email'],
            /* translators: Email change notification email subject. %s: Site title. */
            'subject' => __('[%s] Email Changed'),
            'message' => $email_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's email is changed.
         *
         * @since 4.3.0
         *
         * @param array $email_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###NEW_EMAIL###   The new email address.
         *         - ###EMAIL###       The old email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
        $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
        $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
        wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
    }
    if ($switched_locale) {
        restore_previous_locale();
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $user_id) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($user_id, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.9

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $user_id = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$user_id) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($user_id);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($user_id, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (is_wp_error($user_id)) {
        return $user_id;
    }
    $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $switched_locale = false;
    if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
        $switched_locale = switch_to_locale(get_user_locale($user_id));
    }
    if (!empty($send_password_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $pass_change_email = array(
            'to' => $user['user_email'],
            /* translators: Password change notification email subject. %s: Site title. */
            'subject' => __('[%s] Password Changed'),
            'message' => $pass_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's password is changed.
         *
         * @since 4.3.0
         *
         * @param array $pass_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients. Add emails in a comma separated string.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###EMAIL###       The user's email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
        $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
        $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
        wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
    }
    if (!empty($send_email_change_email)) {
        /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
        $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
        $email_change_email = array(
            'to' => $user['user_email'],
            /* translators: Email change notification email subject. %s: Site title. */
            'subject' => __('[%s] Email Changed'),
            'message' => $email_change_text,
            'headers' => '',
        );
        /**
         * Filters the contents of the email sent when the user's email is changed.
         *
         * @since 4.3.0
         *
         * @param array $email_change_email {
         *     Used to build wp_mail().
         *
         *     @type string $to      The intended recipients.
         *     @type string $subject The subject of the email.
         *     @type string $message The content of the email.
         *         The following strings have a special meaning and will get replaced dynamically:
         *         - ###USERNAME###    The current user's username.
         *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
         *         - ###NEW_EMAIL###   The new email address.
         *         - ###EMAIL###       The old email address.
         *         - ###SITENAME###    The name of the site.
         *         - ###SITEURL###     The URL to the site.
         *     @type string $headers Headers.
         * }
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
        $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
        $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
        $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
        wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
    }
    if ($switched_locale) {
        restore_previous_locale();
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $user_id) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($user_id, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.6

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: Password change notification email subject. %s: Site title. */
                'subject' => __('[%s] Password Changed'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *     Used to build wp_mail().
             *
             *     @type string $to      The intended recipients. Add emails in a comma separated string.
             *     @type string $subject The subject of the email.
             *     @type string $message The content of the email.
             *         The following strings have a special meaning and will get replaced dynamically:
             *         - ###USERNAME###    The current user's username.
             *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *         - ###EMAIL###       The user's email address.
             *         - ###SITENAME###    The name of the site.
             *         - ###SITEURL###     The URL to the site.
             *     @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             * }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: Email change notification email subject. %s: Site title. */
                'subject' => __('[%s] Email Changed'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *     Used to build wp_mail().
             *
             *     @type string $to      The intended recipients.
             *     @type string $subject The subject of the email.
             *     @type string $message The content of the email.
             *         The following strings have a special meaning and will get replaced dynamically:
             *         - ###USERNAME###    The current user's username.
             *         - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *         - ###NEW_EMAIL###   The new email address.
             *         - ###EMAIL###       The old email address.
             *         - ###SITENAME###    The name of the site.
             *         - ###SITEURL###     The URL to the site.
             *     @type string $headers Headers.
             * }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.5

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: Password change notification email subject. %s: Site title. */
                'subject' => __('[%s] Password Changed'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: Email change notification email subject. %s: Site title. */
                'subject' => __('[%s] Email Changed'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.4

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields.
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields.
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now.
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: Password change notification email subject. %s: Site title. */
                'subject' => __('[%s] Password Changed'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: Email change notification email subject. %s: Site title. */
                'subject' => __('[%s] Email Changed'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.3

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    clean_user_cache($user_obj);
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: Password change notification email subject. %s: Site title. */
                'subject' => __('[%s] Password Changed'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: Email change notification email subject. %s: Site title. */
                'subject' => __('[%s] Email Changed'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = false;
            if (false !== $logged_in_cookie && $logged_in_cookie['expiration'] - time() > $default_cookie_life) {
                $remember = true;
            }
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.2

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: Password change notification email subject. %s: Site name */
                'subject' => __('[%s] Password Changed'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: Email change notification email subject. %s: Site name */
                'subject' => __('[%s] Email Changed'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 5.1

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: User password change notification email subject. %s: Site name */
                'subject' => __('[%s] Notice of Password Change'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: User email change notification email subject. %s: Site name */
                'subject' => __('[%s] Notice of Email Change'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.9

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: User password change notification email subject. 1: Site name */
                'subject' => __('[%s] Notice of Password Change'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The user's email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: User email change notification email subject. 1: Site name */
                'subject' => __('[%s] Notice of Email Change'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###NEW_EMAIL###   The new email address.
             *                - ###EMAIL###       The old email address.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.7

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        $switched_locale = false;
        if (!empty($send_password_change_email) || !empty($send_email_change_email)) {
            $switched_locale = switch_to_locale(get_user_locale($user_id));
        }
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array(
                'to' => $user['user_email'],
                /* translators: User password change notification email subject. 1: Site name */
                'subject' => __('[%s] Notice of Password Change'),
                'message' => $pass_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array(
                'to' => $user['user_email'],
                /* translators: User email change notification email subject. 1: Site name */
                'subject' => __('[%s] Notice of Email Change'),
                'message' => $email_change_text,
                'headers' => '',
            );
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
        if ($switched_locale) {
            restore_previous_locale();
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.6

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filters whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filters whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Password Change'), 'message' => $pass_change_text, 'headers' => '');
            /**
             * Filters the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Email Change'), 'message' => $email_change_text, 'headers' => '');
            /**
             * Filters the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.5

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filter whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filter whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    wp_cache_delete($user['user_nicename'], 'userslugs');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Password Change'), 'message' => $pass_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', $blog_name, $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Email Change'), 'message' => $email_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', $blog_name, $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.4

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass']) && $userdata['user_pass'] !== $user_obj->user_pass) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filter whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filter whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'));
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Password Change'), 'message' => $pass_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', get_option('blogname'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', home_url(), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Email Change'), 'message' => $email_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', get_option('blogname'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', home_url(), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.3

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    if (!empty($userdata['user_pass'])) {
        // If password is changing, hash it now
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
        /**
         * Filter whether to send the password change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_password_change_email = apply_filters('send_password_change_email', true, $user, $userdata);
    }
    if (isset($userdata['user_email']) && $user['user_email'] !== $userdata['user_email']) {
        /**
         * Filter whether to send the email change email.
         *
         * @since 4.3.0
         *
         * @see wp_insert_user() For `$user` and `$userdata` fields.
         *
         * @param bool  $send     Whether to send the email.
         * @param array $user     The original user array.
         * @param array $userdata The updated user array.
         *
         */
        $send_email_change_email = apply_filters('send_email_change_email', true, $user, $userdata);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    if (!is_wp_error($user_id)) {
        $blog_name = wp_specialchars_decode(get_option('blogname'));
        if (!empty($send_password_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $pass_change_text = __('Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $pass_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Password Change'), 'message' => $pass_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's password is changed.
             *
             * @since 4.3.0
             *
             * @param array $pass_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients. Add emails in a comma separated string.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
             *        }
             * @param array $user     The original user array.
             * @param array $userdata The updated user array.
             *
             */
            $pass_change_email = apply_filters('password_change_email', $pass_change_email, $user, $userdata);
            $pass_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITENAME###', get_option('blogname'), $pass_change_email['message']);
            $pass_change_email['message'] = str_replace('###SITEURL###', get_option('siteurl'), $pass_change_email['message']);
            wp_mail($pass_change_email['to'], sprintf($pass_change_email['subject'], $blog_name), $pass_change_email['message'], $pass_change_email['headers']);
        }
        if (!empty($send_email_change_email)) {
            /* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
            $email_change_text = __('Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###');
            $email_change_email = array('to' => $user['user_email'], 'subject' => __('[%s] Notice of Email Change'), 'message' => $email_change_text, 'headers' => '');
            /**
             * Filter the contents of the email sent when the user's email is changed.
             *
             * @since 4.3.0
             *
             * @param array $email_change_email {
             *            Used to build wp_mail().
             *            @type string $to      The intended recipients.
             *            @type string $subject The subject of the email.
             *            @type string $message The content of the email.
             *                The following strings have a special meaning and will get replaced dynamically:
             *                - ###USERNAME###    The current user's username.
             *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
             *                - ###EMAIL###       The old email.
             *                - ###SITENAME###    The name of the site.
             *                - ###SITEURL###     The URL to the site.
             *            @type string $headers Headers.
             *        }
             * @param array $user The original user array.
             * @param array $userdata The updated user array.
             */
            $email_change_email = apply_filters('email_change_email', $email_change_email, $user, $userdata);
            $email_change_email['message'] = str_replace('###USERNAME###', $user['user_login'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###ADMIN_EMAIL###', get_option('admin_email'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###EMAIL###', $user['user_email'], $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITENAME###', get_option('blogname'), $email_change_email['message']);
            $email_change_email['message'] = str_replace('###SITEURL###', get_option('siteurl'), $email_change_email['message']);
            wp_mail($email_change_email['to'], sprintf($email_change_email['subject'], $blog_name), $email_change_email['message'], $email_change_email['headers']);
        }
    }
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.2

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if ($userdata instanceof stdClass) {
        $userdata = get_object_vars($userdata);
    } elseif ($userdata instanceof WP_User) {
        $userdata = $userdata->to_array();
    }
    $ID = isset($userdata['ID']) ? (int) $userdata['ID'] : 0;
    if (!$ID) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    // If password is changing, hash it now.
    if (!empty($userdata['user_pass'])) {
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 4.0

/**
 * Update an user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if (is_a($userdata, 'stdClass')) {
        $userdata = get_object_vars($userdata);
    } elseif (is_a($userdata, 'WP_User')) {
        $userdata = $userdata->to_array();
    }
    $ID = (int) $userdata['ID'];
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    // If password is changing, hash it now.
    if (!empty($userdata['user_pass'])) {
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
            // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
            $logged_in_cookie = wp_parse_auth_cookie('', 'logged_in');
            /** This filter is documented in wp-includes/pluggable.php */
            $default_cookie_life = apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $ID, false);
            $remember = $logged_in_cookie['expiration'] - time() > $default_cookie_life;
            wp_set_auth_cookie($ID, $remember);
        }
    }
    return $user_id;
}

WordPress Version: 3.9

/**
 * Update an user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if (is_a($userdata, 'stdClass')) {
        $userdata = get_object_vars($userdata);
    } elseif (is_a($userdata, 'WP_User')) {
        $userdata = $userdata->to_array();
    }
    $ID = (int) $userdata['ID'];
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    // If password is changing, hash it now.
    if (!empty($userdata['user_pass'])) {
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            wp_set_auth_cookie($ID);
        }
    }
    return $user_id;
}

WordPress Version: 3.8

/**
 * Update an user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 * @see wp_insert_user() For what fields can be set in $userdata
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if (is_a($userdata, 'stdClass')) {
        $userdata = get_object_vars($userdata);
    } elseif (is_a($userdata, 'WP_User')) {
        $userdata = $userdata->to_array();
    }
    $ID = (int) $userdata['ID'];
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    // If password is changing, hash it now.
    if (!empty($userdata['user_pass'])) {
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            wp_set_auth_cookie($ID);
        }
    }
    return $user_id;
}

WordPress Version: 3.7

/**
 * Update an user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 * @see wp_insert_user() For what fields can be set in $userdata
 * @uses wp_insert_user() Used to update existing user or add new one if user doesn't exist already
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata)
{
    if (is_a($userdata, 'stdClass')) {
        $userdata = get_object_vars($userdata);
    } elseif (is_a($userdata, 'WP_User')) {
        $userdata = $userdata->to_array();
    }
    $ID = (int) $userdata['ID'];
    // First, get all of the original fields
    $user_obj = get_userdata($ID);
    if (!$user_obj) {
        return new WP_Error('invalid_user_id', __('Invalid user ID.'));
    }
    $user = $user_obj->to_array();
    // Add additional custom fields
    foreach (_get_additional_user_keys($user_obj) as $key) {
        $user[$key] = get_user_meta($ID, $key, true);
    }
    // Escape data pulled from DB.
    $user = add_magic_quotes($user);
    // If password is changing, hash it now.
    if (!empty($userdata['user_pass'])) {
        $plaintext_pass = $userdata['user_pass'];
        $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
    }
    wp_cache_delete($user['user_email'], 'useremail');
    // Merge old and new fields with new fields overwriting old ones.
    $userdata = array_merge($user, $userdata);
    $user_id = wp_insert_user($userdata);
    // Update the cookies if the password changed.
    $current_user = wp_get_current_user();
    if ($current_user->ID == $ID) {
        if (isset($plaintext_pass)) {
            wp_clear_auth_cookie();
            wp_set_auth_cookie($ID);
        }
    }
    return $user_id;
}