$hash = hash('sha256', $password);

                function createSalt() {
                    $text = md5(uniqid(rand(), true));
                    return substr($text, 0, 3);
                }

                $salt = createSalt();
                $password = hash('sha256', $salt . $hash);

                $query = "INSERT INTO user ( name, login, password, email, salt ) VALUES
        ( '$name', '$login', '$password', '$email', '$salt' )";