SOAP-ERROR: Parsing WSDL

Client
~~~~~~~~
<?php
$soap = new SoapClient("http://localhost/test.wsdl", array('exceptions' => 0));
try
{
echo $soap->getUsers(1);
 
}
catch (SoapFault $exception) 
{
echo 'EXCEPTION='.$exception; 
} 
 
 
 
?>
~~~~~~~~~~~~~~~
Server
~~~~~~~~~~~~~~~
<?php
function getUsers($difficulty) {
$puzzles[1][] = "First";
$puzzles[2][] = "Second";
$puzzles[3][] = "Third";
$randpuz = array_rand($puzzles[$difficulty]);
return $puzzles[$difficulty][$randpuz];
}
$server = new SoapServer("test.wsdl");
$server->addFunction("getUsers");
$server->handle();
?>
 
~~~~~~~~~~~~~~~~~~~~~~
WSDL
~~~~~~~~~~~~~~~~~~~~~~
<?xml version ='1.0' encoding ='UTF-8' ?> 
<definitions 
	name='AfterAction' 
	targetNamespace='urn:AfterAction' 
	xmlns:typens='urn:AfterAction' 
	xmlns:xsd='http://www.w3.org/2001/XMLSchema' 
	xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/' 
	xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/' 
	xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'
	xmlns='http://schemas.xmlsoap.org/wsdl/'>
	<message name='getUsers'>
		<part name='difficulty' type='xsd:int' />
	</message>
	<message name='getUsersResponse'>
		<part name='return' type='xsd:string' />
	</message>
	<portType name='AfterActionPort'>
		<operation name='getUsers'>
			<input message='typens:getUsers' />
			<output message='typens:getUsersResponse' />
		</operation>
	</portType>
	<binding name='AfterActionBinding' type='typens:AfterActionPort'>
		<soap:binding style='rpc' transport='http://schemas.xmlsoap.org/soap/http' />
		<operation name='getUsers'>
			<soap:operation soapAction='urn:AfterActionAction' />
			<input>
				<soap:body use='encoded' namespace='urn:AfterAction'
					encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' />
			</input>
			<output>
				<soap:body use='encoded' namespace='urn:AfterAction'
					encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' />
			</output>
		</operation>
	</binding>
	<service name='AfterActionService'>
		<port name='AfterActionPort' binding='typens:AfterActionBinding'>
			<soap:address location='http://localhost/server.php' />
		</port>
	</service>
</definitions>
                                  

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