Help with PHP build in SOAP call return

scrypt

Hi,

I'm stuck with a problem with PHP's build in SOAP functions here at work.

We're using PHP 5.1.4

I make a soap call to a server from another department to get some info.

request en response are ok when I print them out with getLastRequest() and getLastResponse(), but the array that __soapCall returns is empty.

the response is something like this:
<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<FunctionResponse xmlns="http://namespaceserver">
<Element1 attributeName1="value1" />
<Element2 attributeName2="value2" />
</FunctionResponse>
</soap:Body>
</soap:Envelope>

but the array returned by __soapCall is:
Array ( [Element1] => [Element2] => )

It drops the attributes from the elements out of the response, but value1 and value2 is the info I need.

I googled and searched this forum for a solution for this, but I've not found a solution.

Is there an option to add to soapclient constructor or soapcall to include the attributes?
Is this even a client problem, or is it caused by the soap server I address?

Help would be greatly appreciated.
Thanks.

johanafm

Use DOM

$dom = new DomDocument();
$dom->loadXML($soapClient->__getLastResponse());
$response = $dom->getElementsByTagName('FunctionResponse');
$response = $body[0];

Then foreach over the children of $response, and grab their attributes.

scrypt

johanafm;10932208 wrote:
Use DOM
$dom = new DomDocument();
$dom->loadXML($soapClient->__getLastResponse());
$response = $dom->getElementsByTagName('FunctionResponse');
$response = $body[0];
Then foreach over the children of $response, and grab their attributes.

Thanks for the suggestion, but when I try this, a var_dump of the Dom object is empty, while when I print it out with saveXML, I get the original xml response?

$dom = new DomDocument();
$dom->loadXML($client->__getLastResponse());
var_dump($dom);
echo "<br>Test: ".htmlspecialchars($dom->saveXML());

object(DOMDocument)#2 (0) { } 
Test: <?xml version="1.0" encoding="UTF-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><FunctionResponse xmlns="http://namespaceserver"><Element1 attributeName1="value1" /><Element2 attributeName2="value2" /></FunctionResponse></soap:Body></soap:Envelope>

Weedpacket

That seems to be something to do with the fact that the DOM class is implemented by PHP internally instead of as an ordinary PHP-coded class. It can get in the way of debugging (perhaps add it to PHP's bugtracker as a wishlist item) but var_dump() isn't used in working code anyway.

scrypt

I googled some more on the subject and found the problem.

PHP's xml parsers (DOM, SimpleXML) seem to have difficulties to properly parse a soap xml. Specificaly, they can't handle the soap:Envelope and soap:Body tags because of the ':'. They interpret the soap: as a namespace, which isn't one.

The easiest solution I found is to strip the ':' from the tags, after which the xml gets parsed without a problem.

Weedpacket

Glad it works for you, but the comment is wrong. The colon is precisely what the XML specification uses to indicate a namespace. It's even declared in the same document you posted:

<soap:Envelope
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">

Note that last xmlns attribute there.