тест php include includes session php require_once function func php s

тест
<?php
include("includes/session.php");
require_once("function/func.php");

session_start();
$_SESSION = array();

if(isset($_COOKIE[session_name()])) {
	setcookie(session_name(), '', time()-42000, '/');
}

session_destroy();
redirect_to("login.php?logout=1");
?>