Version Mismatch Error

Hello Sir, I found your email at http://www.spinics.net/lists/phpsoap/msg01412.html .I want ur your help to solve my problem. I'm new to soap application .I'm using php 5 For our client we using http://www.savaari.com/demo/soap/soap.class_test.php?wsdl this as per me the version of soap is 1.1 Server config are enabled. But still it throws me error like this Fatal error: Uncaught SoapFault exception: [VersionMismatch] Wrong Version in /home/getsmart/public_html/ontest/ajaxtrip.php:31 Stack trace: #0 [internal function]: SoapClient->__call('Call', Array) #1 /home/getsmart/public_html/ontest/ajaxtrip.php(31): SoapClient->Call('gettrips', Array) #2 {main} thrown in /home/getsmart/public_html/ontest/ajaxtrip.php on line 31 our url http://www.getsmarttrip.com/ontest/ajaxtrip.php I Also try your tip about version $client = new SoapClient( "reference to wsdl", array("soap_version" => SOAP_1_2)); but fail . I tried but unable to solve problem pl.help me Thanks Kiran