// CUSTOM ADMIN DASHBOARD HEADER LOGO  
  
function custom_admin_logo() {  
    echo '<style type="text/css">#header-logo { background-image: url('.get_bloginfo('template_directory').'/images/logo_admin_dashboard.png) !important; }</style>';  
}  
add_action('admin_head', 'custom_admin_logo');

Once we login and are in the backend of WordPress, there is another small logo of WordPress displayed on top. It’s small but if you wish to change it, then add below code to the same functions.php file we created in above step.

Custom Admin Dashboard Header Logo

header, wordpress

PHP