<?php 
$client = new SoapClient(null, array(
      'location' => "http://localhost/extras.ap/LoginService/login.php",
      'uri'      => "urn://localhost/extras.ap/LoginService",
      'soap_version' => SOAP_1_2,
      'trace'    => 0 ));
$return = $client->__SoapCall("CheckUser", array("Admin,admin"));
echo("\nReturning value of __soapCall() call: ".$return);
   ?>