Hi everybody! I've got some troubles trying to connect with a WS. I'd tried that with natives functions: $web_service="http://url_of_the_webservice.asmx?WSDL<http://url_of_the_webservice.asmx/?WSDL> "; try { $client = new SoapClient($web_service, array('soap_version' => SOAP_1_1, 'encoding'=>'utf-8', 'trace' => TRUE, 'STYLE' => SOAP_DOCUMENT, 'use' => SOAP_LITERAL ) ); } catch (SoapFault $exception) { //ERROR!!! echo "<h1>A exception has ocurred: </h1> "; echo $exception; } and i recived this error: A exception has ocurred: SoapFault exception: [WSDL] SOAP-ERROR: Parsing Schema: unresolved element 'ref' attribute in /var/www/sites/version_2/SOAPdingus.php:20 Stack trace: #0 /var/www/sites/version_2/ SOAPexample.php(20): SoapClient->__construct('http://services...', Array) #1 {main} We are working with PHP 5.1.6 (but we tried too in a server with PHP 5.3.4 with the same error). You must know that we connect with others WS without any kind of problems.