public function updateMemberRemark($openId, $remark)
{
$result = $this->httpRaw(self::WECHAT_MEMBER_REMARK_UPDATE_URL . 'access_token=' . $this->getAccessToken(), ['openid' => $openId, 'remark' => $remark]);
return isset($result['errmsg']) && $result['errmsg'] == 'ok';
}