Flash:Actionscript 3.0 my code not posts data to url

Hi,

Please check my code why do it not posts to showed url. I have added some demo data in "postData" for to debug to see if it can post them correctly.
My Code:

function post_results(userid,session,score) {
	// Post data to database
	var loader:URLLoader = new URLLoader(); 
	var req:URLRequest = new URLRequest("http://example.com/post.php");

	req.method = URLRequestMethod.POST;

	var postData:URLVariables = new URLVariables();
	postData.uid = "000023542543";
	postData.ses = "w6r4gt46wrtg4w3trg1ew3rt5h465tw";
	postData.scr = "5868"; 
	
	req.data = postData; 
	try {
		loader.load(req);
		trace("Data Sent");
	} catch (error:Error) {
		trace("Unable to load requested document.");
	}  

} 

PHP:

Turkel.

 

why you did not add listener Event.Complete to URLLoader to check if your code work or not ?