protected function _loadKeyPairList(\SimpleXMLElement $sxml) { $list = new KeyPairList(); $list->setCloudFront($this->cloudFront); if (!empty($sxml->Items->KeyPairId)) { foreach ($sxml->Items->KeyPairId as $v) { $item = new KeyPairData(); $item->keyPairId = (string) $v->KeyPairId; $list->append($item); unset($item); } } return $list; }