<?php

// Begin the session
session_start();

// To avoid case conflicts, make the input uppercase and check against the session value
// If it's correct, echo '1' as a string
if (strtoupper($_GET['captcha']) == $_SESSION['captcha_id']) {
    echo 'true';
}
// Else echo '0' as a string
else {
    echo 'false';
}
