AdminPageFramework_Model_Menu__RegisterMenu::_addPageSubmenuItem PHP Метод

    private function _addPageSubmenuItem($sRootPageSlug, $sMenuSlug, $sPageSlug, $sPageTitle, $sMenuTitle, $sCapability, $bShowInMenu, $nOrder)
    {
        if (!$sPageSlug) {
            return '';
        }
        $_sPageHook = add_submenu_page($sRootPageSlug, $sPageTitle, $sMenuTitle, $sCapability, $sPageSlug, array($this->oFactory, '_replyToRenderPage'));
        $this->_setPageHooks($_sPageHook, $sPageSlug);
        $_nSubMenuPageIndex = $this->_getSubMenuPageIndex($sMenuSlug, $sMenuTitle, $sPageTitle, $sPageSlug);
        if (null === $_nSubMenuPageIndex) {
            return $_sPageHook;
        }
        $_aRemovedMenuItem = $this->_removePageSubmenuItem($_nSubMenuPageIndex, $sMenuSlug, $sPageSlug, $sMenuTitle);
        if (!$bShowInMenu && !$this->_isCurrentPage($sPageSlug)) {
            return $_sPageHook;
        }
        $this->_setSubMenuPageByIndex($nOrder, $_aRemovedMenuItem, $sMenuSlug);
        $GLOBALS['_apf_sub_menus_to_sort'][$sMenuSlug] = $sMenuSlug;
        return $_sPageHook;
    }