Controller\User::nickname PHP Method

    public function nickname()
    {
        $user = MUser::getCurrent();
        if ($_POST['nickname'] != null) {
            $user = MUser::getUserByUserId($user->uid);
            $user->nickname = htmlspecialchars(trim($_POST['nickname']));
            $user->save();
            $_SESSION['currentUser'] = $user;
            return array('error' => 0, 'message' => '修改昵称成功，刷新页面或重新登录生效。');
        } else {
            Template::putContext('user', $user);
            Template::setView("panel/change_nickname");
        }
    }