src/Amadeus/Client/ResponseHandler/StandardResponseHandler.php
protected function makeDomXpath($response)
    {
        $domDoc = $this->loadDomDocument($response);
        $domXpath = new \DOMXPath($domDoc);

        $domXpath->registerNamespace(
            self::XMLNS_PREFIX,
            $domDoc->documentElement->lookupNamespaceUri(null)
        );

        return $domXpath;
    }
protected function makeDomXpath($response)
    {
        $domDoc = $this->loadDomDocument($response);
        $domXpath = new \DOMXPath($domDoc);

        $domXpath->registerNamespace(
            self::XMLNS_PREFIX,
            $domDoc->documentElement->lookupNamespaceUri(null)
        );

        return $domXpath;
    }
Make a Xpath-queryable object for an XML string

registers TNS namespace with prefix self::XMLNS_PREFIX

@param string $response
@return \DOMXPath
@throws Exception when there's a problem loading the message