Two parameter SOAP function

My wsdl file is at the end of this message. I am using SOAP Client (http://scan.dalo.us/?p=29) to test with and according to this handy application, my WSDL file is valid and it parses correctly. Basically, the function 'IsSomething' has two parameters. Using SOAP Client, I fill in values for the two parameters, but only the first one comes through on the SOAP Server side. The SOAP Server looks like this: <?PHP class SomethingService {

    function IsSomething( $challenge_string, $a_number ) {
        throw new SoapFault( "CheckFailedFault", "$challenge_string, $a_number",
                                 "urn:ExampleAPI",
                                 "Fault: The details",
                                 'ckfl' );
    }

} $server = new SoapServer( "something.wsdl" ); $server->setClass( "SomethingService" ); $server->handle(); ?> When I examine the response, I only see the text I entered for $challenge_string. Any idea what I am doing wrong and how to fix it? I'd like to assume this isn't a bug in PHP 5.2.0 and that I am just missing something, but what I am missing has escaped me for the moment. Thank you. <?xml version ='1.0' encoding ='UTF-8' ?> <definitions name='Test' targetNamespace='http://mycompany.net/Test' xmlns:tns='http://mycompany.net/Test' xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/' xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/' xmlns='http://schemas.xmlsoap.org/wsdl/'> <message name='submitSomething'> <part name='a_number' type='xsd:string'/> </message> <message name='getSubmitSomethingResponse'> <part name='Result' type='xsd:boolean'/> </message> <message name='checkSomething'> <part name='challenge_string' type='xsd:string'/> <part name='a_number' type='xsd:string'/> </message> <message name='getCheckSomethingResponse'> <part name='Result' type='xsd:boolean'/> </message> <message name='CheckFailedFault'> <part name='CheckFailedFault' element='tns:CheckFailedFault'/> </message> <portType name='TestPortType'> <operation name='Something'>

    <input message='tns:submitSomething'/>
    <output message='tns:getSubmitSomethingResponse'/>

</operation> <operation name='IsSomething'>

    <input message='tns:checkSomething'/>
    <output message='tns:getCheckSomethingResponse'/>
    <fault name='ckfl' message='tns:CheckFailedFault'/>

</operation> </portType> <binding name='TestBinding' type='tns:TestPortType'> <soap:binding style='rpc'

    transport='http://schemas.xmlsoap.org/soap/http'/>

<operation name='Something'>

    <soap:operation soapAction='urn:mycompany_Test#Something'/>
    <input>
      <soap:body use='encoded' namespace='urn:mycompany_Test'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </input>
    <output>
      <soap:body use='encoded' namespace='urn:mycompany_Test'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </output>

</operation> <operation name='IsSomething'>

    <soap:operation soapAction='urn:mycompany_Test#IsSomething'/>
    <input>
      <soap:body use='encoded' namespace='urn:mycompany_Test'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </input>
    <output>
      <soap:body use='encoded' namespace='urn:mycompany_Test'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </output>

</operation> </binding> <service name='TestService'> <port name='TestPort' binding='tns:TestBinding'> <soap:address location='http://192.168.1.222/~Eric/Test/TestSoapServer.php'/> </port> </service> </definitions>