Fatal error: Uncaught SoapFault exception [wsdl] SOAP-ERROR

i'm trying to make a test with wsdl , soap and php , and i'm gettin the error :

Fatal error: Uncaught SoapFault exception [wsdl] SOAP-ERROR

I have for now 2 files , one is a given wsdl , and client.php just for test:

<?php

   $sClient = 'http://localhost/test/service/wbs.wsdl';
   $wsdl = new SoapClient ( '$sClient') ;
   echo "test";

?>

and i'm getin this error :

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from ' hp://localhost/test/service/wbs.wsdl' : failed to load external entity " hp://localhost/test/service/wbs.wsdl" in C:wampwwwOutboundclient.php:4 Stack trace: #0 C:wampwwwtestclient.php(4): SoapClient->SoapClient(' hp://localh...') #1 {main} thrown in C:wampwwwtestclient.php on line 4

I did change the extension of soap in php.ini , i did all the modification posted in other posts , but nothing works .