WordPress Version: 6.2
/**
* Updates user option with global blog capability.
*
* User options are just like user metadata except that they have support for
* global blog options. If the 'is_global' parameter is false, which it is by default,
* it will prepend the WordPress table prefix to the option name.
*
* Deletes the user option if $newvalue is empty.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id User ID.
* @param string $option_name User option name.
* @param mixed $newvalue User option value.
* @param bool $is_global Optional. Whether option name is global or blog specific.
* Default false (blog specific).
* @return int|bool User meta ID if the option didn't exist, true on successful update,
* false on failure.
*/
function update_user_option($user_id, $option_name, $newvalue, $is_global = false)
{
global $wpdb;
if (!$is_global) {
$option_name = $wpdb->get_blog_prefix() . $option_name;
}
return update_user_meta($user_id, $option_name, $newvalue);
}