/** * save as XML * * @param array $keys * @param null $rootName * @param bool $addOpenTag * @param bool $addCdata * @return string */ public function toXml(array $keys = [], $rootName = null, $addOpenTag = false, $addCdata = true) { if (is_null($rootName)) { $rootName = $this->getEntityCode(); } if (empty($keys)) { $keys = $this->getXmlAttributes(); } return parent::toXml($keys, $rootName, $addOpenTag, $addCdata); }