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wp_redirect_admin_locations()

Redirects a variety of shorthand URLs to the admin.

Description

If a user visits example.com/admin, they’ll be redirected to /wp-admin. Visiting /login redirects to /wp-login.php, and so on.

Source

File: wp-includes/canonical.php 

function wp_redirect_admin_locations() {
	global $wp_rewrite;

	if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) {
		return;
	}

	$admins = array(
		home_url( 'wp-admin', 'relative' ),
		home_url( 'dashboard', 'relative' ),
		home_url( 'admin', 'relative' ),
		site_url( 'dashboard', 'relative' ),
		site_url( 'admin', 'relative' ),
	);

	if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $admins, true ) ) {
		wp_redirect( admin_url() );
		exit;
	}

	$logins = array(
		home_url( 'wp-login.php', 'relative' ),
		home_url( 'login', 'relative' ),
		site_url( 'login', 'relative' ),
	);

	if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins, true ) ) {
		wp_redirect( wp_login_url() );
		exit;
	}
}

Uses

Uses Description
wp-includes/formatting.php: untrailingslashit()

Removes trailing forward slashes and backslashes if they exist.
wp-includes/pluggable.php: wp_redirect()

Redirects to another page.
wp-includes/general-template.php: wp_login_url()

Retrieves the login URL.
wp-includes/query.php: is_404()

Determines whether the query has resulted in a 404 (returns no results).
wp-includes/link-template.php: admin_url()

Retrieves the URL to the admin area for the current site.
wp-includes/link-template.php: home_url()

Retrieves the URL for the current site where the front end is accessible.
wp-includes/link-template.php: site_url()

Retrieves the URL for the current site where WordPress application files (e.g. wp-blog-header.php or the wp-admin/ folder) are accessible.
wp-includes/class-wp-rewrite.php: WP_Rewrite::using_permalinks()

Determines whether permalinks are being used.

Changelog

Version Description
3.4.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_redirect_admin_locations