sendAndLoad returning 'UNDEFINED'

programming flash
1

Hi Guys,
I have searched this forum and cant find an answer to why I keep receiving ‘undefined’ when receiving my loaded variables from a PHP page. I believe I am doing everything correct. For some reason it was working fine, then all of a sudden its not. It does work here and there but now it keeps saying undefined. Below is my code.


var senderLoad:LoadVars = new LoadVars();
var receiveLoad:LoadVars = new LoadVars();

onLogin.onRelease = function() {
	
	senderLoad.uname = uname.text;
	senderLoad.pword = pword.text;
	
	senderLoad.sendAndLoad("login.php", receiveLoad, "POST");
};
receiveLoad.onLoad = function(ok:Boolean) {
	pp.text = this.sentOK;
	if (this.sentOK) {
		gotoAndPlay("success");
	} else {
		gotoAndPlay("failed");
	}
};
stop();

and here is the php code for reference;

	

include('conf.php');

	$username = ltrim($_POST['uname']);
	$password= md5(ltrim($_POST['pword']));
		
	$check_user=mysql_query("SELECT * FROM stockists WHERE email='$username' AND password='$password'",$server);
	$user_exists =  mysql_num_rows($check_user);
		
	
	if($user_exists)
	{
		$get_user=mysql_fetch_array($check_user);
		$_SESSION['stockistID']=$get_user['ID'];
		$_SESSION['admin']=1;
		echo "&sentOK=1";
	}

I seriously cant find an explanation to why it is doing this. Anyone??