message` format and converts it to [code => message] array format. */ class XmlToArrayConverter implements ConverterInterface { /** * @inheritdoc */ public function convert($source) { $result = []; $messageList = $source->getElementsByTagName('message'); foreach ($messageList as $messageNode) { $result[(string) $messageNode->getAttribute('code')] = (string) $messageNode->nodeValue; } return $result; } }