add_action('wishlist_single_main', 'wishlist_single_main_20201908', 0);

function wishlist_single_main_20201908($atts){

    $wishlist_id = isset( $atts['id'] ) ? $atts['id'] : 0;
    //echo '<pre>'.var_export($wishlist_id, true).'</pre>';
    ?>
    <p>Custom HTML here</p>
    <?php
}

 

View post on imgur.com