Actionscript: Send Data to PHP

sendData.as

public function sendData(url:String, vars:URLVariables) 
{
	var req:URLRequest = new URLRequest(url);
	req.data = vars;
	req.method = URLRequestMethod.POST;
	
	var loader:URLLoader = new URLLoader();
	loader.dataFormat = URLLoaderDataFormat.TEXT; // URLLoaderDataFormat.VARIABLES will cause error #2101
	loader.load(req);
	loader.addEventListener(Event.COMPLETE, loadComplete, false, 0, true);
}

private function loadComplete(e:Event):void
{
	var loader:URLLoader = URLLoader(e.target);
	trace(loader.data); // php result
	ExternalInterface.call( "console.log" , loader.data); // view in browser
}