/** * Add a submenu item * * @param string $slug * @param string $txt * @param string $txt2 * @param string $access * @param string $link * @param string $action * @return void */ function add_submenu_page($slug, $txt, $txt2, $access, $link = null, $action = null) { return Submenu::append($txt, $link, $isActive); }