PHP, WCF Soap 1.1

HelloServerWsdlSoap1_1.php

#PHP Code
<?php
$url = "http://localhost/WCF.Integration.Services/ITestService.svc?wsdl";

ini_set("soap.wsdl_cache_enabled", "1");
$client = new SoapClient($url);

try
{ 
    $info = $client->TestMethod(array('methodParameter' => "Test"));
    var_dump($info);
} 
catch (SoapFault $fault) 
{ 
    var_dump($fault);
    $xml=$fault->faultstring;
    die;
}
?>