AJAX - The Complete Reference

504 Part III: Advanced Topics

The service handles our “helloworld” call and responds with our favorite welcoming

message via a SOAP response.

<?php

function helloworld()

{

return "Hello World to user from ". $_SERVER['REMOTE_ADDR'].

" at ". date("h:i:s A");

}

$server = new SoapServer(null, array('uri' => "urn:helloworld"));

$server->addFunction("helloworld");

$server->handle();

?>

Back on the browser, we then receive the packet and parse it putting the payload into

the page.

function handleResponse(response)

{

var result = response.responseXML.getElementsByTagName("return");

$id("responseOutput").innerHTML = result[0].firstChild.nodeValue;

}

The operation and network trace of this SOAP example is shown in Figure 10-6, and the

example can be found at http://ajaxref.com/ch10/soapclient.html.

FIGURE 10-6 SOAPy Ajax request