php webservice 错误

[shenzaohui]

header("Content-Type: text/html; charset=utf-8");
require_once("includes/webservice/nusoap.php");
//include('../conf/model.php');

$weburl = "http://www.**.com/webservice";
$client = new soapclient($weburl.'/webservice.php');



$err = $client->getError();

if($err)
{
echo $err."<br>";exit();
}
else
{
/*查询客户历史订单信息-ok*/
$result = select_order_history();

//$result = select_cust_byid();
echo "<pre>";
print_r(json_decode($result,true)); exit;

}
这段代码在其他人机子上执行通过,在我机子上执行错误:SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://www.**.com/webservice/webservice.php'
我的机子是 windows