Parsing SOAP response with SimpleXML - php

Question

I am trying to call a soap server method. Everything works fine except one thing. I get a respone from the server in XML format. So far so good. But the problem is that i need to get the values of the XML and normally i do that just with a foreach and get the values i need. But this time the name of the child i need to get data from is called: 'return'. So i can not reference to that in a foreach function.
Could someone tell me how i can reach the same result but with a different way?
My answer from the server:
<soap:envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:body>
<ns2:getauthresponse xmlns:ns2="http://dpd.com/common/service/types/LoginService/2.0" xmlns:ns3="http://dpd.com/common/service/exceptions">
<return>
<delisid>thedelisid</delisid>
<customeruid>thecustomerid</customeruid>
<authtoken>theauthenticationcode</authtoken>
<depot>thedepot</depot>
</return>
</ns2:getauthresponse>
</soap:body>
</soap:envelope>
the code i would normally use to get the result:
foreach($xml->return->authtoken as $authtoken)
{
print_r($authtoken);
}
The problem is the return sign here, php keeps seeing it as the return statement.
I also made it an array using new SimpleXMLElement.
And the error i get when i run the code is:
Invalid argument supplied for foreach()
How can i get the value of authtoken?
All the code:
$xml_getAuth = '
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:ns="http://dpd.com/common/service/types/LoginService/2.0">
<soapenv:Header/>
<soapenv:Body>
<ns:getAuth>
<delisId>'.$delisId.'</delisId>
<password>'.$password.'</password>
<messageLanguage>'.$messageLanguage.'</messageLanguage>
</ns:getAuth>
</soapenv:Body>
<soapenv:Envelope>
';
$headers_getAuth = array(
"POST HTTP/1.1",
"Content-type: application/soap+xml; charset=\"utf-8\"",
"SOAPAction: \"http://dpd.com/common/service/LoginService/2.0/getAuth\"",
"Content-length: ".strlen($xml_getAuth)
);
$getAuth = curl_init('https://public-ws-stage.dpd.com/services/LoginService/V2_0/');
curl_setopt($getAuth, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($getAuth, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($getAuth, CURLOPT_POST, 1);
curl_setopt($getAuth, CURLOPT_HTTPHEADER, $headers_getAuth);
curl_setopt($getAuth, CURLOPT_POSTFIELDS, "$xml_getAuth");
curl_setopt($getAuth, CURLOPT_RETURNTRANSFER, 1);
$output_getAuth = curl_exec($getAuth);
//Gebruikernsaam en wachtwoord komen niet overeen
if(strpos($output_getAuth,'LOGIN_8') !== false)
{
echo "Verkeerde gebruikernsaam of wachtwoord, neem contact op met uw systeembeheerder voor meer informatie.";
exit;
}
$xml = new SimpleXMLElement($output_getAuth);
foreach($xml->return->authtoken as $authtoken)
{
print_r($authtoken);
}
Answer from the soap call:
stdClass Object ( [return] => stdClass Object ( [delisId] => delisid [customerUid] => custid [authToken] => authtoken [depot] => depot ) )

Answer 1

First of all, you should probably be using SoapClient instead of SimpleXML. For example:
$c = new SoapClient('https://public-ws-stage.dpd.com/services/LoginService/V2_0/?WSDL');
$res = $c->getAuth(array(
'delisId' => 'foo',
'password' => 'bar',
'messageLanguage' => 'en-us',
));
echo $res->result->authToken;
That said, using xpath solves many problems:
<?php
$response = <<<XML
<soap:envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:body>
<ns2:getauthresponse xmlns:ns2="http://dpd.com/common/service/types/LoginService/2.0" xmlns:ns3="http://dpd.com/common/service/exceptions">
<return>
<delisid>thedelisid</delisid>
<customeruid>thecustomerid</customeruid>
<authtoken>theauthenticationcode</authtoken>
<depot>thedepot</depot>
</return>
</ns2:getauthresponse>
</soap:body>
</soap:envelope>
XML;
$xml = simplexml_load_string($response);
foreach ($xml->xpath('//return') as $tmp) {
echo "authtoken = ", $tmp->authtoken, PHP_EOL;
}