php webservice client

<?php
try {
    //$client = new SoapClient("HelloService.wsdl",array('encoding'=>'UTF-8'));
    $client = new SoapClient("http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx?wsdl");
    var_dump($client->__getFunctions());
    print("<br/>");
    var_dump($client->__getTypes());
    print("<br/>");

    class qqCheckOnline{
       var $qqCode = "10000";
    };
    $arrPara = array(new qqCheckOnline);

    $arrResult = $client->__Call("qqCheckOnline",$arrPara);//$client->qqCheckOnline($arrPara);

    echo $arrResult->qqCheckOnlineResult . "<br/>";
} catch (SOAPFault $e) {
    print $e;
}
?>