ksugihara

//creating the stream context option containing the http headers
$ctx = stream_context_create($opts);

$soapClient = new SoapClient($wsdl,
                                                        array('location' => $api_endpoint,
                                  'uri' => "urn:ConvertCurrency",
                                  'soap_version' => SOAP_1_1,
                                  'trace' => 1, //debugging option
                                  'stream_context' => $ctx)); //adding the stream context option containing the http headers

$response = $soapClient->ConvertCurrency($params);

//The $response is a PreapprovalResponse type.
//Retriving few information from the response

debug($response);


} catch (SoapFault $e) {
   echo "Error Id : ||" . $e->detail->FaultMessage->error->errorId. "<br/>";
   echo "Error Message : ||" . $e->detail->FaultMessage->error->message;
}