ActionScript 3.0 AJAX Demonstration

ActionScript 3.0 Code for AJAX Style Processing
without XML and also without Java. What should
that be called? "AAS" perhaps.

// ============================================================
// we are going to POST some variables something like this ....
// foo=Lemming&baa=Aardvark&wee=Zebra
// ============================================================
var variables : URLVariables;
variables     = new URLVariables();
variables.foo = "Lemming";
variables.baa = "Aardvark";
variables.wee = "Zebra";
// ============================================================
// A PHP script on a web page will process the POST variables
// ============================================================
var myRequest    : URLRequest;
myRequest        = new URLRequest();
myRequest.url    = "http://www.softwareforeducation.com/tutorials/ActionScriptCS3/99AjaxTingX.php";
myRequest.method = URLRequestMethod.POST;
myRequest.data   = variables;
// ============================================================
// This is the AJAX bit that listens for the reply
// It is not using XML so perhaps it should be called AJA
// Come to that, it's not using Java either so lets call it "A"
// ============================================================
var loader        : URLLoader;
loader            = new URLLoader();
loader.dataFormat = URLLoaderDataFormat.VARIABLES;
loader.addEventListener(Event.COMPLETE, completeHandler);
// ============================================================
// Runs when the reply from the external script is complete
// ============================================================
function completeHandler(event:Event):void
{
  var foo : String;
  var baa : String;
  var wee : String;

  foo = event.target.data.foo;
  baa = event.target.data.baa;
  wee = event.target.data.wee;
  replyText.text = foo + "\n" + baa + "\n" + wee;
}
// ============================================================
// Run this code in response to a click on the Go movie clip
// ============================================================
goMC.addEventListener(MouseEvent.CLICK, doGoMC);

function doGoMC(e:MouseEvent):void
{
  try
  {
    loader.load(myRequest);
  }
  catch (error:Error)
  {
    trace("Could not load the remote script page.");
  }
}
// ============================================================
 

Here is the PHP code processed by the server

 
<?php
  extract($_POST); // expecting $foo, $baa and $wee

 echo "foo=\"Hello $foo!\"&baa=\"Yo $baa!\"&wee=\"Hay, Dude, $wee!\"";
?>