<?php
ini_set('display_errors', 0);

if(isset($_GET['page'])) {
    $page = htmlspecialchars($_GET['page']);
    if (file_exists('templates/' . $page . '.tpl.php')) {
        include('templates/' . $page . '.tpl.php');
    } else {
        header('Location: page/dashboard');
    }
}else{
    header('Location: page/dashboard');
}