public function accept()
    {

        // load the current file
        $splFileInfo = $this->getInnerIterator()->current();

        // calculate the maximum age of sessions we want to load
        $aTime = time() - $this->maximumAge;

        // compare the session files age against the maximum age
        if ($splFileInfo->getATime() < $aTime) {
            return false;
        }

        return true;
    }