check.php

<?php
session_start();
require_once "connect.php";
        $polaczenie = @new mysqli($host, $db_user, $db_password, $db_name);
        if (!isset($_SESSION['zalogowany']))
        {
                header('Location: index.php');
                exit();
        }
if($_SESSION['captcha'] == $_POST['kod']){//CAPTCHA POPRAWNA
        $login = $_SESSION['user'];
        mysql_query("UPDATE `uzytkownicy` SET `zakupy` = 0 WHERE `user`='$login' ");
        echo mysql_error;
        ?> <script> location.replace("aukcje"); </script> <?php
}else{ include"logout.php"; }
?>