<?php
if(isset($_COOKIE['LAST_ACTIVITY']))
{
if (time() - $_COOKIE['LAST_ACTIVITY'] > 86400) {
    // last activity is more than 10 minutes ago

	session_destroy();
	echo "you are logged out because of the 10 minutes...";
	exit();
} else {
    // update last activity timestamp
    //echo "updated timestamp";
	//printf("timestamp updated %d seconds left", 3600 - (time() - $_SESSION['LAST_ACTIVITY']));
	$_COOKIE['LAST_ACTIVITY'] = time();
}
}else
{
	echo "no cookie...";
	exit();
}


?>