public function loginUser($email, $password) {

        $loginQuery = $this->db->prepare("SELECT * FROM users WHERE user_email = :email limit 1");
        $loginQuery->bindParam(':email', $email, PDO::PARAM_STR);
        $loginQuery->execute();
        $user = $loginQuery->fetch();

        $db_password = $user['user_password'];
        //var_dump($password, $db_password);
        if (password_verify($password, $db_password)) {
            $_SESSION["userId"] = $user['user_id'];
        }
        if ($user["user_role"] == "admin") {
            header("Location: admin/index.php");
        } else {
            header("Location: profile.php");
        }
        return $user;

    }