/** * add submenu box * @param $parent_slug * @param $url * @param $capability * @param string $page_title * @param string $menu_slug */ public function add_submenu_box($parent_slug, $url, $page_title, $capability = 'manage_options', $menu_slug = '') { //valid if (empty($capability)) { $capability = 'manage_options'; } if (empty($menu_slug)) { $menu_slug = sanitize_title($page_title) . '-' . $this->option('module_name'); } $menu_id = HW_Module_Settings_page::add_menu_box($this->option('module_name'), array('title' => $page_title, 'page_title' => $page_title, 'capability' => $capability, 'menu_slug' => $menu_slug, 'link' => $url), $parent_slug); return $menu_id; }