Build XML for soap request - php

Question

How would you build a soap request manually? I didn't bother looking for a soap client for php so I am trying to build the requests manually. Here is a sample of the request:
Content-Type: application/soap+xml; charset=utf-8
Content-Length: length
<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<EWalletLoginCmd xmlns="xxxxxxx">
<ewalleTID>string</ewalleTID>
<PIN>string</PIN>
</EWalletLoginCmd>
</soap12:Body>
</soap12:Envelope>
I made a function for sending the request like:
private function send($url, $xml) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, Array("Content-Type: application/soap+xml; charset=utf-8"));
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, array('xml' => $xml));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
return $result;
}
But I am lost on how to actually build the XML, I started with:
$xml = new DOMDocument('1.0', 'UTF-8');
$body = $xml->createElement('body');
$xml->appendChild($body);
return $xml->saveXML();
But how do you specifiy <soap12:? I am new to soap and xml on php.

Answer 1

PHP has the SoapClient class built in for using SOAP.
if your SOAP server has a wsdl try
$wsdl= 'location of your servers wsdl';
$options = array('soap_version'=>SOAP_1_2, 'trace'=>true);
$client = new SoapClient($wsdl, $options);
then you can call any method on your client like
$results = $client->EWalletLoginCmd(array('ewalleTID'=>'...', 'PIN'=>'...'));