Pages statistic Legosp

        // Header - redirect

        if(isset($_GET['refer'])) {
            // user ID
            $query = db_query("SELECT * FROM users WHERE `hash`=".$_GET['refer']);
            $userID = $query['id'];
            setcookie('refer', $userID);
            $_SESSION['refer'] = $userID;
            header("Location: /");exit();
        }

        // Payment
        if(isset($_COOKIE['refer']))
        {
            $referID = (int) $_COOKIE['refer'];
            // SQL ---
        }

        if(isset($_SESSION['current_page']))
        {
            if($_SESSION['current_page'] === $_SERVER['REQUEST_URI']){
                //
            }else{
                db_query("UPDATE `pages` SET end_time=".time()." WHERE referID=".$_SERVER['refer']);
                db_query("INSERT INTO pages(start_time, end_time, referID, url) VALUES(".time().", 0, ".$_SESSION['referID'].", ".$_SERVER['REQUEST_URI'].")");
                $_SESSION['current_page'] = $_SERVER['REQUEST_URI'];

            }
        }else{
            db_query("INSERT INTO pages(start_time, end_time, referID, url) VALUES(".time().", 0, ".$_SESSION['referID'].", ".$_SERVER['REQUEST_URI'].")");
            $_SESSION['current_page'] = $_SERVER['REQUEST_URI'];
        }