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