Trouble in passing variable to flash

Question

I want to pass the current login username from php to flash. So I have written the following code.
PHP Code:
<?php
    require_once('C:\xampp\htdocs\moodle\config.php');
    $r=$USER->username;
   echo "val=$r";
?>
Actionscript code
var myLoader:URLLoader = new URLLoader();
myLoader.dataFormat = URLLoaderDataFormat.TEXT;
var myRequest:URLRequest=new URLRequest("http://localhost/moodle/identity.php");
myLoader.load(myRequest);
myLoader.addEventListener(Event.COMPLETE,onCompleteHandler);
var myValue: String;
function onCompleteHandler(e:Event):void{
          var myvariable: URLVariables = new URLVariables(e.target.data);
          myValue = myvariable.val;
               trace(myValue);
There is no error message from both php and actionscript. But I can't see the variable myValue in actionscript. Then I type localhost/moodle/identity.php and I can retrieve the correct login username.But it cannot be passed to flash.
why is that?

Answer 1

Most probably there are spaces before val in PHP - trim spaces either in PHP or once you load them.
To trim spaces in AS3 use:
var data:String = String(e.target.data).replace(/\s/g, "");
var myvariable:URLVariables = new URLVariables(data);