function getCurrentSchuelerName($f3) { if ($f3->exists('COOKIE.user_name') && $f3->get('COOKIE.user_name')) { return $f3->get('COOKIE.user_name'); } else { $schuelerName = DbWrapper::getSchuelerNameById($f3->get('db'), $f3->get('COOKIE.user_id')); $f3->set('COOKIE.user_name', $schuelerName); return $schuelerName; } }