[WordPress] Conditional tag to check whether current page is wp-login.php or wp-register.php.

wp-is-login.php

<?php
/**
 * Conditional tag to check whether current page is wp-login.php or wp-register.php.
 */
if( ! function_exists( 'wp_is_login' ) ) {
	function wp_is_login() {
		return in_array( $GLOBALS[ 'pagenow' ], array( 'wp-login.php' , 'wp-register.php' ) );
	}
}