admin_url

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

WordPress Version: 6.1

/**
 * Retrieves the URL to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path   Optional. Path relative to the admin URL. Default empty.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl().
 *                       'http' or 'https' can be passed to force those schemes.
 * @return string Admin URL link with optional path appended.
 */
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 5.7

/**
 * Retrieves the URL to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path   Optional. Path relative to the admin URL. Default 'admin'.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl().
 *                       'http' or 'https' can be passed to force those schemes.
 * @return string Admin URL link with optional path appended.
 */
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 4.6

/**
 * Retrieves the URL to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path   Optional path relative to the admin URL.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl().
 *                       'http' or 'https' can be passed to force those schemes.
 * @return string Admin URL link with optional path appended.
 */
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 4.5

/**
 * Retrieve the url to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path   Optional path relative to the admin url.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
 * @return string Admin url link with optional path appended.
 */
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 4.3

/**
 * Retrieve the url to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path   Optional path relative to the admin url.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
 * @return string Admin url link with optional path appended.
*/
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 3.9

/**
 * Retrieve the url to the admin area for the current site.
 *
 * @since 2.6.0
 *
 * @param string $path Optional path relative to the admin url.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
 * @return string Admin url link with optional path appended.
*/
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}

WordPress Version: 3.7

/**
 * Retrieve the url to the admin area for the current site.
 *
 * @package WordPress
 * @since 2.6.0
 *
 * @param string $path Optional path relative to the admin url.
 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
 * @return string Admin url link with optional path appended.
*/
function admin_url($path = '', $scheme = 'admin')
{
    return get_admin_url(null, $path, $scheme);
}