NULL
object(stdClass)#3 (2) {
  ["errcode"]=>
  int(40029)
  ["errmsg"]=>
  string(139) "invalid code, hint: [1769139696614783279043048], from ip: 202.193.170.2, more info at https://open.work.weixin.qq.com/devtool/query?e=40029"
}
string(214) "6XJX5ZQZB2HvyrVv1pcxP2v5ev9iD5cALrgLbOmLw-bliP96i0bCUYNWkiUw54iGfKb7pbqH9PYsTGiKICRuj5eldsukXUGX5vZqDmgxAfjUTWTH3KNhlAiOySlwoRBUWlq6ox_lyuVVAFtA6ic3xO_ECCA2TDToH4tyUwPrHbTWJZhQGgsgUQo_yV4aM9RAw-n9w7-JBLp6dwtPzxUfJw"
<meta name='viewport' content='width=device-width, initial-scale=1.0'><h3>illegal openid</h3><h4>请尝试刷新二维码后重新扫码</h4>