SWDB/application/action/logout.php

<?php

    /**
     * File for the login action.
     *
     * Implements an action function to be called from the {@see Controller}.
     * 
     * @category Action
     */

    /**
     * Logs the user out and redirects to the login page.
     *
     * Invalidates cookies and session variables.
     * 
     * @return int 0.
     * @category Action
     * @global User The logged-in user.
     */
    function action(){
        $USER = null;
        setcookie("user_id", null, time() - 3600);
        setcookie("user_token", null, time() - 3600);
        session_regenerate_id();
        $_SESSION['session'] = false;
        $_SESSION['user_id'] = "";
        header("Location: /");
        die();
        return 0;
    }
?>