How to retrieve a string value from a PHP function call

Question

Should this string be the return value of the PHP function?
Or should it be embedded in the response HTML? Any examples?

Answer 1

This is what I got so far:
footer.mxml in Flex Builder 3:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="ts_request()">
<mx:Script>
<![CDATA[
public function ts_request():void {
timestampRequest.send();
]]>
</mx:Script>
<mx:Canvas width="836" height="36"
backgroundColor="#05075C">
<mx:Label id="timestamp"
text="{timestampRequest.lastResult.timestamp}" color="#FEFEFE"
height="20" y="10" textAlign="left" width="221" x="10"/>
</mx:Canvas>
<mx:HTTPService id="timestampRequest" url="
http://www.ABC.com/timestamp.php"
useProxy="false" method="POST" />
</mx:Application>
Here is the timestamp.php on the www.ABC.com web server. I
have tested the php by directly access it with
"www.ABC.com/timestamp.php" and it shows the timestamp correctly:
<?php
putenv($timezone);
$Return = "<timestamp>".date("m/d/Y H:i:s", time())."
CST"."</timestamp>";
print($Return);
?>
When I run footer.mxml in Flex 3 Builder, I got an error:
This file cannot be launched.
Where did I do wrong?