Pretty Links query debugging plugin

debugging.php

<?php

/*
 * Plugin Name: Pretty Links Debugging
 * Description: Debugging plugin for Pretty Links.
 */

add_filter('posts_results', function ($posts, $query) {
  if (is_admin() && class_exists('PrliUtils') && isset($query->query['post_type']) && $query->query['post_type'] == 'pretty-link') {
    ob_start();
    var_dump($query);
    PrliUtils::debug_log(ob_get_clean());
  }

  return $posts;
}, 10, 2);