<?php
/**
 * Created by Komma.pro
 * User: mikevandersanden
 * Date: 27/1/14
 */
session_start();

/*
 * Check if there are unsaved changes
 */
if(isset($_GET['check']))
{
    if(isset($_SESSION['unsaved_changes']))
    {
        echo true;
    }
    else
    {
        echo false;
    }
}

/*
 * Check if there are unsaved changes
 */
if(isset($_GET['set']))
{
   $_SESSION['unsaved_changes'] = true;
}

/*
 * Unset saved changes
 */
if(isset($_GET['unset']))
{
    unset($_SESSION['unsaved_changes']);
}