Where can additional resources be found for properly destroying PHP sessions?

When destroying PHP sessions, it is important to properly unset the session variables and destroy the session data to ensure that sensitive information is not accessible after the user has logged out. Additional resources for properly destroying PHP sessions can be found in the PHP manual or on websites dedicated to PHP programming. 

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

// If desired, clear the session cookie
if (ini_get("session.use_cookies")) {
    $params = session_get_cookie_params();
    setcookie(session_name(), '', time() - 42000,
        $params["path"], $params["domain"],
        $params["secure"], $params["httponly"]
    );
}

// Destroy the session
session_destroy();

Keywords

session_destroy session_unset session_regenerate_id session_write_close PHP manual

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