PHP code initiating a BPEL Process

Question

Thanks to Ross Ackland, we have an example of PHP calling BPEL. We are working on integrating it into the build as a sample. Between now and then here is the PHP code snippet!
<?php
** Using PHP Soap - Requires PHP Version 5
** See: http://au.php.net/soap
** SoapClient constructor allows creating SoapClient objects in WSDL or non-WSDL mode.
** This sample uses the WSDL mode and requires the URI of WSDL file as the first parameter
** and an optional options array.
** Simple HelloWorld client for the "BPEL Designer Tutorial 1: Developing a Hello World BPEL Process"
** http://www.oracle.com/technology/products/ias/bpel/pdf/orabpel-Tutorial1-HelloWorldTutorial.pdf
** Edit this sting
$wsdl_url = 'http://localhost:9700/orabpel/default/SyncHelloWorld/SyncHelloWorld?wsdl';
$client = new SoapClient($wsdl_url,array('trace' => 1,'exceptions' => 0));
print "WSDL Mode";
print '<pre>';
print 'Functions:'; print_r($client->__getFunctions());
print 'Types:'; print_r($client->__getTypes());
print '</pre>';
** Even though HelloWorld takes a simple string as the input parameter, PHP SOAP method
** calls require parameters to be typed exactly as specified in the WSDL. The __getTypes()
** call will show you the parameter types required for each method.
class SyncHelloWorldRequest {
var $input = "";
function SyncHelloWorldRequest($in) {
$this->input = $in;
$parm = new SyncHelloWorldRequest("someInputFromPHP");
$ret = $client->process($parm);
print "process() returned: ".$ret->result;
print '<pre>';
print "Request:".htmlspecialchars($client->__getLastRequest());
print "Response:".htmlspecialchars($client->__getLastResponse());
print '</pre>';
?>

Answer 1

This is nice if you have PHP5, this wont work on earlier versions. Do you have an example with PHP < 5 ?