Question

Some people say use unset($_SESSION["..."]) and some say session_unset() and some say $_SESSION = array() and some say session_destroy() and I am saying “for God’s sake, this stuff is getting confusing, can someone please explain me which is the correct/secure way to log the user out” and what is used for what?

Appreciated…

Answer 1

<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();

// Unset all of the session variables.
$_SESSION = array();

// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (ini_get("session.use_cookies")) {
    $params = session_get_cookie_params();
    setcookie(session_name(), '', time() - 42000,
    $params["path"], $params["domain"],
    $params["secure"], $params["httponly"]
    );
}

// Finally, destroy the session.
session_destroy();
?>

RTM