Php web services WSDL simple test script wont work

mickthetree · November 29, 2010, 4:32pm

hey all

I’m dabbling with web services and just cannot get anything to work. I have check with PHPinfo and soap is installed.

This script is in the same folder as the nusoap files but I just cannot get anything to return a response.

<?php
// Pull in the NuSOAP code
require_once('nusoap.php');
// Create the client instance
$client = new soapclient('http://www.mickthetree.com/soapTest/nusoapintro/helloworld2.php');
// Check for an error
$err = $client->getError();
if ($err) {
	// Display the error
	echo '<p><b>Constructor error: ' . $err . '</b></p>';
	// At this point, you know the call that follows will fail
}
// Call the SOAP method
$result = $client->call('hello', array('name' => 'Scott'));
// Check for a fault
if ($client->fault) {
	echo '<p><b>Fault: ';
	print_r($result);
	echo '</b></p>';
} else {
	// Check for errors
	$err = $client->getError();
	if ($err) {
		// Display the error
		echo '<p><b>Error: ' . $err . '</b></p>';
	} else {
		// Display the result
		print_r($result);
	}
}
// Display the request and response
echo '<h2>Request</h2>';
echo '<pre>' . htmlspecialchars($client->request, ENT_QUOTES) . '</pre>';
echo '<h2>Response</h2>';
echo '<pre>' . htmlspecialchars($client->response, ENT_QUOTES) . '</pre>';
// Display the debug messages
echo '<h2>Debug</h2>';
echo '<pre>' . htmlspecialchars($client->debug_str, ENT_QUOTES) . '</pre>';
?>

When I run the client script

http://mickthetree.com/soapTest/nusoap/lib/helloworld2client.php

I get a blank page returned.

apart from the urls nothing in this script is changed from the many sites that have this listed (including the guy who wrote nusoap http://www.scottnichol.com/soap/index.html)

Error logs show the following:

“PHP Warning: SoapClient::SoapClient(http://www.mickthetree.com/soapTest/nusoapintro/helloworld2.php) [<a href=‘soapclient.soapclient’>soapclient.soapclient</a>]: failed to open stream: Connection refused in /home/sites/mickthetree.com/public_html/soapTest/nusoap/lib/helloworld2client.php on line 5”

"HP Warning: SoapClient::SoapClient() [<a href=‘soapclient.soapclient’>soapclient.soapclient</a>]: I/O warning : failed to load external entity "http://www.mickthetree.com/soapTest/nusoapintro/helloworld2.php" in "

Can anyone help me to understand what is going wrong here?

Kind regards

Mittineague · November 30, 2010, 12:47am

The “blank page” is returning an HTTP Internal Server error header.

My guess would be the WSDL file is buggy. Though it could be a naming conflict with PHP5’s native soapclient class - or something else

Is helloworld2client.php line 5

$client = new soapclient('http://www.mickthetree.com/soapTest/nusoapintro/helloworld2.php');

but you’re not getting a Constructor error $err message?

mickthetree · November 30, 2010, 8:25am

thanks for taking a look for me.

I found this same script on numerous sites including the guy who wrote nusoap so I assume the script is fine.

Would you have a simple WSDL client and server script you know works that I could try out on my servers?

I’m trying to check with something simple first as I have a bigger project that I cannot get to work either and I want to make sure its not my servers causing the problems with the scripts.

Mittineague · November 30, 2010, 8:38am

I have a few. These that use the native PHP SOAP are from an O’Reilly tutorial http://www.onlamp.com/pub/a/php/2007/07/26/php-web-services.html

catalog.wsdl

<?xml version ='1.0' encoding ='UTF-8' ?> 
<definitions name='Catalog' 
  targetNamespace='http://example.org/catalog' 
  xmlns:tns='http://example.org/catalog' 
  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='getCatalogRequest'> 
  <part name='catalogId' type='xsd:string'/> 
</message> 
<message name='getCatalogResponse'> 
  <part name='Result' type='xsd:string'/> 
</message> 

<portType name='CatalogPortType'> 
  <operation name='getCatalogEntry'> 
    <input message='tns:getCatalogRequest'/> 
    <output message='tns:getCatalogResponse'/> 
  </operation> 
</portType> 

<binding name='CatalogBinding' type='tns:CatalogPortType'> 
  <soap:binding style='rpc' 
    transport='http://schemas.xmlsoap.org/soap/http'/> 
  <operation name='getCatalogEntry'> 
    <soap:operation soapAction='urn:localhost-catalog#getCatalogEntry'/> 
    <input> 
      <soap:body use='encoded' namespace='urn:localhost-catalog' 
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/> 
    </input> 
    <output> 
      <soap:body use='encoded' namespace='urn:localhost-catalog' 
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/> 
    </output> 
  </operation> 
</binding> 

<service name='CatalogService'> 
  <port name='CatalogPort' binding='CatalogBinding'> 
    <soap:address location='http://localhost/soap/soap-server.php'/> 
  </port> 
</service>
</definitions>

soap-server.php

<?php
function getCatalogEntry($catalogId)
{ 
	if ($catalogId == 'catalog1')
	{
	$first = "<html><head><title>Catalog</title></head>
	<body>
	<table>
	<tr>
	<th>CatalogId</th>
	<th>Journal</th>
	<th>Section</th>
	<th>Edition</th>
	<th>Title</th>
	<th>Author</th>
	</tr>
	<tr>
	<td>catalog1</td>
	<td>IBM developerWorks</td>
	<td>XML</td>
	<td>October 2005</td>
	<td>JAXP validation</td>
	<td>Brett McLaughlin</td>
	</tr>
	</table>
	</body>
	</html>";
	return $first;
	}
	elseif ($catalogId == 'catalog2')
	{
	$second = "<html><head><title>Catalog</title></head>
	<body>
	<table>
	<tr>
	<th>CatalogId</th>
	<th>Journal</th>
	<th>Section</th>
	<th>Edition</th>
	<th>Title</th>
	<th>Author</th>
	</tr>
	<tr>
	<td>catalog2</td>
	<td>IBM developerWorks</td>
	<td>XML</td>
	<td>July 2006</td>
	<td>The Java XPath API</td>
	<td>Elliotte Harold</td>
	</tr>
	</table>
	</body>
	</html>";
	return $second;
	}
}
ini_set("soap.wsdl_cache_enabled", false); 
$server = new SoapServer("http://localhost/soap/catalog.wsdl");
$server->addFunction("getCatalogEntry"); 
$server->handle();
?>

soap-client.php

<?php
try
{
  $client = new SoapClient("http://localhost/soap/catalog.wsdl");
  $catalogId = 'catalog1';
  $response = $client->getCatalogEntry($catalogId);
}
catch (SoapFault $fault)
{
    trigger_error("SOAP Fault: (faultcode: {$fault->faultcode}, faultstring: {$fault->faultstring})", E_USER_ERROR);
}
  var_dump($response);
?>

mickthetree · November 30, 2010, 8:59am

perfect, just what I need. I’ll work through the tutorial now. One that I havent seen.

but why is it that all the articles on web services on the web seem so dated? Am I referring to it incorrectly? or has it been surpassed by other methods?

I’m sure I’m looking in the wrong places and I’m going to find a whole world of information just around the corner…

Mittineague · November 30, 2010, 4:59pm

Yes, most of what I could find was dated too. The most recent article I’ve found, but haven’t been able to try as I don’t have Silverlight, is Silverlight and PHP, Part 2: Creating a Simple Twitter Client July 8, 2010

mickthetree · December 3, 2010, 8:35am

thanks for your helps on this. I have managed to get your example working, proving that it does work on my server. So it must be me!!

I have some more questions now so I’ll start a new thread.