session_start(); header("Expires: Mon, 26 Jul 1963 05:00:00 GMT"); // Data passata header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // sempre modificato header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1 header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); // HTTP/1.0 if($_SESSION["alive"] != "1") ?>