Hook

Show all actions and filters run on current queried object

This is an advanced class helpful when debugging issues on WordPress with themes and plugins.

Add it to a theme’s function.php and load any page, or perform any action (for example you can die() a cred_save_data() to see what’s hooked in this moment, etc).

Scroll to the bottom of the page to see the hooked actions and filters.

class MyTracker {

  static $hooks;

  static function track_hooks( ) {
    $filter = current_filter();
    if ( ! empty($GLOBALS['wp_filter'][$filter]) ) {
      foreach ( $GLOBALS['wp_filter'][$filter] as $priority => $tag_hooks ) {
        foreach ( $tag_hooks as $hook ) {
          if ( is_array($hook['function']) )  {
            if ( is_object($hook['function'][0]) ) {
              $func = get_class($hook['function'][0]) . '->' . $hook['function'][1];
            } elseif ( is_string($hook['function'][0]) ) {
              $func = $hook['function'][0] . '::' . $hook['function'][1];
            }
          } elseif( $hook['function'] instanceof Closure ) {
            $func = 'a closure';
          } elseif( is_string($hook['function']) ) {
            $func = $hook['function'];
          }
          self::$hooks[] = 'On hook "' . $filter . '" run '. $func . ' at priority ' . $priority;
        }
      }
    }
  }

}

add_action( 'all', array('MyTracker', 'track_hooks') );

add_action( 'shutdown', function() {
    echo implode( '
', MyTracker::$hooks );
}, 9999);