wp-codesnippet-change-login-logo-url.php

<?php
//add this code into your theme functions.php file

//step 1: change the admin login logo to the uploaded media image file
if ( !function_exists('tt_wp_admin_login_logo') ) :

    function tt_wp_admin_login_logo() { ?>
        <style type="text/css">
            body.login div#login h1 a {
                background-image: url('https://www.yoursite.com/wp-content/uploads/2022/09/your-logo.jpg');
            }
        </style>
    <?php }
 
    add_action( 'login_enqueue_scripts', 'tt_wp_admin_login_logo' );
    
endif;


//step 2: change the admin login URL to website home URL
if ( !function_exists('tt_wp_admin_login_logo_url') ) :
 
    function tt_wp_admin_login_logo_url() {
        return home_url();
    }
    add_filter( 'login_headerurl', 'tt_wp_admin_login_logo_url' );
 
endif;


//step 3: change the admin login logo title to the blog title
if ( !function_exists('tt_wp_admin_login_logo_title') ) :
 
    function tt_wp_admin_login_logo_title( $headertext ) {
        $headertext = esc_html__( get_bloginfo('name'), 'plugin-textdomain' );
        return $headertext;
    }
    add_filter( 'login_headertext', 'tt_wp_admin_login_logo_title' );
 
endif;