How Can You Tell if the URLRequest Variables Are Posted?

Question

Hi,
This sounds really odd, because I happen to have three variables I am supposed to pass to an httpservice and have the results output to my Flex app.
The problem is, I don't know how I can tell if a variable has been posted or not, because no matter what I do, it looks like my trace statement is accurate, but there is nothing shown on the screen.
I tried changing it to GET, and then I get this IO Event Handler error, because my variables are so long.
var loader:URLLoader = new URLLoader();
        var url:String = "http://localhost/generic.php";
        var variables:URLVariables = new URLVariables();
            variables.from= from_string;
            variables.state_colors = state_colors_string;
            variables.change = change_string;                       
        var encode:String= encodeURI(url);
        var pattern:RegExp = /#/g;
        var decode:String = encode.replace(pattern,"%23");
        var request:URLRequest = new URLRequest(decode);           
        request.method = URLRequestMethod.POST;          
I am wondering if my variables have been passed correctly. Is there some other way other than using trace statements?
Thanks for your help.

Answer 1

Hi,
Thanks for the tip, and I have just done that with my php code end. It turns out that the file was generated, and the file is blank after the code has finalized execution.
  So, I guess that my POST variables is definitely not posted.
By the way, I have added a couple of lines for security and IO checks, like you suggested, and here is the almost complete code:
public function changeMap():void{                        
        var url:String = "http://localhost/generic.php";
        var variables:URLVariables = new URLVariables();
            variables.from= from_string;
            variables.state_colors = state_colors_string;
            variables.change = change_string;
        var encode:String= encodeURI(url);
        var pattern:RegExp = /#/g;
        var decode:String = encode.replace(pattern,"%23");
        var request:URLRequest = new URLRequest(decode);           
        request.method = URLRequestMethod.POST;       
        var loader:URLLoader = new URLLoader();
        loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onSecurityError);
        loader.addEventListener(IOErrorEvent.IO_ERROR, onIOError);
        loader.addEventListener(Event.COMPLETE, onLoadComplete);   
        loader.load(request);                    
         private function onSecurityError(event:SecurityErrorEvent):void {
            trace("securityErrorHandler: " + event);
         private function onIOError(event:IOErrorEvent):void {
            trace("ioErrorHandler: " + event);
        public function onLoadComplete(event:Event):void {             //event output                             
From the console, the error events returned nothing from the addEventListeners.
When I used GET before, they worked with two passing variables, but since my variables are now more than 512 characters, I cannot put this on the url, which is why I am insisting on using POST here.
Have I done anything else wrong here?
Thanks for your help.