Soap Service Empty Response Using WSDL

PHP
1

I am at the point of pulling my hair out for this one. So I have setup a SOAP server and a SOAP Client to test my soap server.

Calling a method on the SOAP Server with using a wsdl gives the expected result, but as soon as I tell the client and server to make use of the wsdl, it every call comes back with the follwoing error:

SoapFault exception: [Client] looks like we got no XML document in C:\\inetpub\\wwwroot\\matieadvantage\\root\\api\	est_service.php:7 Stack trace: #0 [internal function]: SoapClient->__call('validate_studen...', Array) #1 C:\\inetpub\\wwwroot\\matieadvantage\\root\\api\	est_service.php(7): SoapClient->validate_studentcard(Array) #2 {main}

Never the soap response headers or the soap response is sent back to the client.

here is my server code:


// web service
$soap = new SoapServer($wsdl, array('uri' => "http://localhost/matieadvantage/validate_studentcard", 'features' => SOAP_SINGLE_ELEMENT_ARRAYS));
$soap->setClass("webservice_handler");
$soap->handle();

my client code:


$client = new SoapClient("http://localhost/matieadvantage/root/api/validate_studentcard.wsdl", array("uri" => "http://localhost/matieadvantage/validate_studentcard"));

try {
	$params = array("studentnumber" => "1090", "matiecardnumber" => "125863521459");

	$result = $client->validate_studentcard($params);

	print_r($result) ;

} catch (SoapFault $exception) {
    echo $exception;
    // DEBUG
    var_dump($client->__getFunctions());
	var_dump($client->__getLastResponseHeaders());
	var_dump(htmlspecialchars($client->__getLastResponse()));
// END DEBUG
}

and my wsdl :


<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions name="matieadvatange" targetNamespace="http://www.example.org/matieadvatange/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://www.example.org/matieadvatange/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
	<wsdl:types>
		<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.example.org/matieadvatange/">
	
			<xsd:element name="validate_studentcard">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="studentnumber" type="xsd:string"></xsd:element>
						<xsd:element name="matiecardnumber" type="xsd:string"></xsd:element>
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>

			<xsd:element name="validate_studentcardResponse" type="tns:validate_studentcardResponseType"></xsd:element>

			<xsd:complexType name="validate_studentcardResponseType">
				<xsd:sequence>
					<xsd:element name="status" type="xsd:string" maxOccurs="1" minOccurs="1"></xsd:element>
					<xsd:element name="initials" type="xsd:string" maxOccurs="1" minOccurs="0"></xsd:element>
					<xsd:element name="lastname" type="xsd:string" maxOccurs="1" minOccurs="0"></xsd:element>	
				</xsd:sequence>
		    </xsd:complexType>
		
		</xsd:schema>
	</wsdl:types>

	
	<wsdl:message name="validate_studentcardRequest">
		<wsdl:part name="parameters" element="tns:validate_studentcard"></wsdl:part>
	</wsdl:message>

	<wsdl:message name="validate_studentcardResponse">
		<wsdl:part name="parameters" element="tns:validate_studentcardResponse"></wsdl:part>
	</wsdl:message>

	<wsdl:portType name="port_matieadvatange">
		<wsdl:operation name="validate_studentcard">
			<wsdl:input message="tns:validate_studentcardRequest"></wsdl:input>
			<wsdl:output message="tns:validate_studentcardResponse"></wsdl:output>
		</wsdl:operation>
	</wsdl:portType>

	<wsdl:binding name="port_matieadvatange" type="tns:port_matieadvatange">
		<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
		
		<wsdl:operation name="validate_studentcard">
			<soap:operation soapAction="http://www.example.org/matieadvatange/student_enquiry.php" />
			<wsdl:input>
				<soap:body use="literal" />
			</wsdl:input>
			
			<wsdl:output>
				<soap:body use="literal" />
			</wsdl:output>
		</wsdl:operation>
	</wsdl:binding>

	<wsdl:service name="matieadvatange">
		<wsdl:port name="matieadvatange" binding="tns:port_matieadvatange">
			<soap:address location="http://www.example.org/" />
		</wsdl:port>
	</wsdl:service>
</wsdl:definitions>

I hope some one can help me determine what the problem is. The wsdl files is accessable.

2

webservice_handler.php


<?php
/**
 *
 * Handles all student related webservice calls
 *
 * @author Jaco
 * @since 2011-02-01
 */
class webservice_handler {
	public function validate_studentcard($parameters) {
//		return $params;
		return array("status" => "SUCCESS", "initials" => "JC", "lastname" => "Nel");
	}
}?>
3

It does seem to find the wsdl file and load it, because when I try and call a method that does not exist I get the following Error: “SoapFault exception: [Client] Function (“test”) is not a valid method for this service”

4

Seem to have progress. Now receiving the following error message: “SoapFault: Undescribed in…”

No idea what this means and google aint helping much.

5

Problem sorted. Error was given to ill structure input elements in wsdl file.