<?php
ini_set('session.gc_maxlifetime', 7200);
session_start();
if (!isset($_SESSION['created'])) {
session_regenerate_id();
$_SESSION['created'] = TRUE;
}
if (!isset($_SESSION['user_agent'])) {
$_SESSION['user_agent'] = md5($_SERVER['HTTP_USER_AGENT'] . 'Memorandum')...