Check if wp-login is current page

Question

How can I check if the current page is wp-login.php or wp-signup.php ?

Are there more elegant solutions than using $_SERVER['REQUEST_URI'] ?

Answer 1

Use the global $pagenow, which is a common global set by WordPress at runtime:

if ( $GLOBALS['pagenow'] === 'wp-login.php' ) {
    // We're on the login page!
}

You can also check the type of login page, for example registration:

if ( $GLOBALS['pagenow'] === 'wp-login.php' && ! empty( $_REQUEST['action'] ) && $_REQUEST['action'] === 'register' ) {
    // We're registering
}

Following code is considered legacy and should not be used (wp-register.php was deprecated & subsequently removed quite a while back):

if ( in_array( $GLOBALS['pagenow'], array( 'wp-login.php', 'wp-register.php' ) ) )
    run_my_funky_plugin();

Answer 2

THE ONLY RELIABLE WAY:

if( is_wplogin() ){
   ...
}

code:

function is_wplogin(){
    $ABSPATH_MY = str_replace(array('\\','/'), DIRECTORY_SEPARATOR, ABSPATH);
    return ((in_array($ABSPATH_MY.'wp-login.php', get_included_files()) || in_array($ABSPATH_MY.'wp-register.php', get_included_files()) ) || (isset($_GLOBALS['pagenow']) && $GLOBALS['pagenow'] === 'wp-login.php') || $_SERVER['PHP_SELF']== '/wp-login.php');
}

Why it's safest?

1) Sometimes, if you try to check login page using REQUEST_URI(or SCRIPT_PATH), you will get INCORRECT VALUES, because many plugins change LOGIN & ADMIN urls.
2) $pagenow will give you incorrect value too in that case!

Notes:

• In some cases, it might not work if you output login-form (i.e. with shortcode or etc) manually on other template files/pages.

Answer 3

More modern way to do that, it should work even when the wp-login URL is changed by plugins and when WP is in a subfolder, etc:

if(stripos($_SERVER["SCRIPT_NAME"], strrchr(wp_login_url(), '/')) !== false){
    /* ... */
}

Answer 4

$GLOBALS['pagenow'] doesn't work, use $_SERVER['PHP_SELF'].

if ( in_array( $_SERVER['PHP_SELF'], array( '/wp-login.php', '/wp-register.php' ) ) ){
    // do something.
}

and if your wordpress is not installed in the web root folder, you should use some params like YOUR_WP_PATH/wp-login.php to replace the elements in array.

Answer 5

I have implemented it using WordPress own wp_login_url() method as follows:

public static function is_wp_login() {
  $login_path = rtrim( strtolower( parse_url( wp_login_url( '', true ), PHP_URL_PATH ) ), '/' );
  return ( rtrim( strtolower( $_SERVER[ 'REQUEST_URI' ] ), '/' ) == $login_path );
}

Just comparing both paths (because it's difficult to be absolutely sure about the use of SSL as it may be terminated) should be enough ... It does mean, however, that a plugin or theme developer who changes the default login form must have done so the proper way ...

Answer 6

I am only interested in register page, not in login page. So this might not be wanted by everybody.

$GLOBALS['pagenow'] returns index.php for me. Maybe because of buddypress or my theme.

So I used

is_page('register')

If you inspect the body of the registration page, it also has the ID as well, so if it says page-id-4906, you can use it this way if it works better:

is_page('4906')

Answer 7

None of the current answers worked for me.

What I've done was check if $_GET array has a 'page' key and if its value is 'sign-in'.

if (isset($_GET['page']) && $_GET['page'] == 'sign-in'){
   // you're on login page
}

Answer 8

A few solutions proposed here worked, so I've came with something really simple that works on an ordinary WordPress site (not tested on Multisite).

As simple as:

    if( !isset($_GET['action']) ){
        echo 'This is the Login Page.';
    } else { 
        echo 'This is the Register Page.';
    }

It takes into account the url parameter ?action=register, which only exists when you are on the registration page.

Answer 9

Here's a PSR-2 version of @T.Todua answer. I just formatted it nicely. This is better to manipulate the function, such as adding a filter for testing purposes, etc:

function isLoginPage()
{
    $is_login_page = false;

    $ABSPATH_MY = str_replace(array('\\', '/'), DIRECTORY_SEPARATOR, ABSPATH);

    // Was wp-login.php or wp-register.php included during this execution?
    if (
        in_array($ABSPATH_MY . 'wp-login.php', get_included_files()) ||
        in_array($ABSPATH_MY . 'wp-register.php', get_included_files())
    ) {
        $is_login_page = true;
    }

    // $GLOBALS['pagenow'] is equal to "wp-login.php"?
    if (isset($GLOBALS['pagenow']) && $GLOBALS['pagenow'] === 'wp-login.php') {
        $is_login_page = true;
    }

    // $_SERVER['PHP_SELF'] is equal to "/wp-login.php"?
    if ($_SERVER['PHP_SELF'] == '/wp-login.php') {
        $is_login_page = true;
    }

    return $is_login_page;
}