Parse XML SOAP response php - php

Question

I'm using the following code to send an request to a SOAP service:
header('Content-type: application/xml');
function doXMLCurl($url,$postXML){
$CURL = curl_init();
curl_setopt($CURL, CURLOPT_URL, $url);
curl_setopt($CURL, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($CURL, CURLOPT_POST, 1);
curl_setopt($CURL, CURLOPT_POSTFIELDS, $postXML);
curl_setopt($CURL, CURLOPT_HEADER, false);
curl_setopt($CURL, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($CURL, CURLOPT_HTTPHEADER, array('Accept: text/xml','Content-Type: application/soap+xml'));
curl_setopt($CURL, CURLOPT_RETURNTRANSFER, true);
$xmlResponse = curl_exec($CURL);
return $xmlResponse;
}
$input_xml = '<s:Envelope xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:s="http://www.w3.org/2003/05/soap-envelope">.....</s:Envelope>';
echo doXMLCurl('webservice_url', $input_xml);
The responde is a XML too.
How can i parse this data or convert to an array or object? I tried with simplexml_load_string() but without success.
EDIT
XML Response:
<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">
<s:Header>
<a:Action s:mustUnderstand="1">...</a:Action>
</s:Header>
<s:Body>
<ListStatesResponse xmlns="http://tempuri.org/">
<ListStatesResult xmlns:b="..." xmlns:i="...">
<b:Return>0</b:Return>
<b:Message i:nil="true"/>
<b:Status>00</b:Status>
<b:ListStates>
<b:States>
<b:Description>ACRE</b:Description>
<b:Code>AC</b:Code>
</b:States>
<b:States>
<b:Description>ALAGOAS</b:Description>
<b:Code>AL</b:Code>
</b:States>
<b:States>
<b:Description>AMAZONAS</b:Description>
<b:Code>AM</b:Code>
</b:States>
...
</b:ListStates>
</ListStatesResult>
</ListStatesResponse>
</s:Body>
</s:Envelope>

Answer 1

Assuming the xml is valid, you can use SimpleXMLElement, i.e.:
$xml = new SimpleXMLElement($xmlResponse);
echo $xml->node->otherNode['Id'];
To loop it, use:
foreach ($xml->node->otherNode as $el) {
foreach($el as $key => $val) {
echo "{$key}: {$val}";
}
}

Answer 2

I found the easiest way is to use json functions
$jsonObject = json_decode(json_encode($xmlString));
Then print_r($jsonObject) to find the structure. This allows attributes to be accessible to using $jsonObject->{'#attributes'}->id;