How to Get the WordPress Screen ID of a Page

# How to Get the WordPress Screen ID of a Page
# Author: https://shibashake.com/wordpress-theme/how-to-get-the-wordpress-screen-id-of-a-page
// Add to the admin_init action hook
add_filter('current_screen', 'my_current_screen' );

function my_current_screen($screen) {
    if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) return $screen;
    print_r($screen);
    return $screen;
}