connect as3 to mysql not work - php

Question

I tried to link my actionscript3 application to the database ... Here are my codes.
MY AS3 CODE:
import flash.events.*;
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.net.URLVariables;
import flash.net.URLRequestMethod;
const SENT_SUCCESS:String = "Successful";
const SENT_FAILED:String = "Unsuccessful";
var tmr:Timer;
function resetTextFields():void {
username.text = String("username");
password.text = String("password");
}
function afterTmrWait(evt:TimerEvent):void {
tmr.stop();
tmr.removeEventListener(TimerEvent.TIMER, afterTmrWait);
}
function submitForm(evt:MouseEvent):void {
var passChecks:Boolean = true;
if(username.text == String("")) {
passChecks = false;<br>
}
if(password.text == String("")) <br>{<br>
passChecks = false;
}
if(passChecks) {
var urlVars:URLVariables = new URLVariables();
var urlReq:URLRequest = new URLRequest("php/login.php");
var ldr:URLLoader = new URLLoader();
urlVars.username = username.text;
urlVars.password = password.text;
urlReq.data = urlVars;
urlReq.method = URLRequestMethod.POST;
ldr.addEventListener(Event.COMPLETE, serverFeedback);
ldr.load(urlReq);
ldr.dataFormat = URLLoaderDataFormat.VARIABLES;
}
}
function serverFeedback(evt:Event):void {
var ldr:URLLoader = evt.target as URLLoader;
var urlVars:URLVariables = new URLVariables(ldr.data);
if(urlVars.result == SENT_SUCCESS) {
login_result.gotoAndStop(2);
resetTextFields();
} else if(urlVars.result == SENT_FAILED) {
login_result.gotoAndStop(3);
}
tmr = new Timer(3000, 1);
tmr.addEventListener(TimerEvent.TIMER, afterTmrWait);
tmr.start();
}
login_btn.addEventListener(MouseEvent.CLICK, submitForm);
resetTextFields();
MY PHP CODE:
<?php
$username = $_POST['username'];
$password = $_POST['password'];
if(exist($_POST['username']) && exist($_POST['password'])) {
$mysql = mysql_connect("host", "username", "password", "database");
$password = md5(stripslashes($mysql->real_escape_string($password)));
$outcome = $mysql->query("SELECT * FROM user WHERE username='{$username}' AND password='{$password}' LIMIT 1");
if(!$outcome->null_rows) {
echo( "result=Unsuccessful" );
} else {
echo( "result=Successful" );
}
}
?>
AND I GET THIS ERROR IN FLASH:
Error: Error #2101: The String passed to URLVariables.decode() must be a URL-encoded query string containing name/value pairs.
at Error$/throwError()
at flash.net::URLVariables/decode()
at flash.net::URLVariables()
at flash.net::URLLoader/onComplete()
PLEASE HELP ME, WHAT I DO WRONG?

Answer 1

The URLLoader dataFormat by default is text. You need to add
ldr.dataFormat=URLLoaderDataFormat.VARIABLES;
so it does throw an error when you try
var urlVars:URLVariables = new URLVariables(ldr.data);

Answer 2

set dataFormat before load request..
your code
ldr.load(urlReq);
ldr.dataFormat = URLLoaderDataFormat.VARIABLES;
try this....
ldr.dataFormat = URLLoaderDataFormat.VARIABLES;
ldr.load(urlReq);