PHP SOAP Help

I've downloaded the Pear SOAP package and installed it in my public_html folder on my hosted web server.

I try to run this code:

 
  <?php
 
        require_once('../SOAP/Client.php');
 
        $DirectFlight_Authentication = array(
                'user'          => 'testaj',
                'pass'          => 'API KEY HERE',
        );
 
 $wsdl_url = 'http://flightaware.com/commercial/flightxml/data/wsdl1.xml';
  $WSDL = new SOAP_WSDL($wsdl_url,$DirectFlight_Authentication);
  $soap = $WSDL->getProxy();
 
  $result = $soap->Enroute('KIAH',10,'airline',0);
 
  ?>

PHP:

I seem to get this error:

I've looked through the file. Line 855 is the last line of the file. I do not see where SOAP_Client is declared more than once with the Client.php page. This page is as it was "out of the box" when I downloaded the soap package. I did not edit it at all. Anyone ever have any of the same experiences or have any ideas how I can get past this little road block?

Thanks!