File Content: init.php <?php add_action('admin_init', 'thim_register_meta_boxes'); /** * Register meta boxes via a filter * Advantages: * - prevents incorrect hook * - prevents duplicated global variables * - allows users to remove/hide registered meta boxes * - no need to check for class existences * * @return void */ function thim_register_meta_boxes() { $meta_boxes = apply_filters('thim_meta_boxes', array()); foreach ($meta_boxes as $meta_box) { new THIM_Meta_Box($meta_box); } } Submit