Flash and PHP actionscript

Question

I have a login form (i have a mysql database and everything
set up) and the login button simply has the AS:
on (release) {
loadVariablesNum("login.php", 0, "POST");
but i don't know what else to add to make it so if you're a
registered user (which i already have a form of) then it will go to
the next frame, and if not registered, it keeps unregistered users
out.
please help, thanks

Answer 1

first off, i wouldn't put any code directly on a button. it
might seem easy to you now, but in the future you will probably
find yourself wondering where the code is. it's much better to have
all your code in a single frame on the main timeline.
second, don't use loadVariablesNum(). Try using
LoadVars.sendAndLoad() instead. Assuming you have given your login
button an instance name of 'loginButton', it might look something
like this:
var submitListener:Object = new Object();
submitListener.click = function(evt:Object) {
var result_lv:LoadVars = new LoadVars();
result_lv.onLoad = function(success:Boolean) {
if (success) {
for (varName in result_lv) {
trace(varName + '=' + result_lv[varName]);
} else {
trace("Error connecting to server.");
var send_lv:LoadVars = new LoadVars();
send_lv.username = 'myUsername';
send_lv.password = 'myPassword';
send_lv.sendAndLoad("https://yourdomain.com/login.php",
result_lv, "POST");
loginButton.addEventListener("click", submitListener);