NULL
object(stdClass)#5 (2) {
  ["errcode"]=>
  int(40029)
  ["errmsg"]=>
  string(139) "invalid code, hint: [1773419632601431022981808], from ip: 202.193.170.2, more info at https://open.work.weixin.qq.com/devtool/query?e=40029"
}
string(214) "mPXiODXjV9Aj2FGv4rUmTgOqrZQ1cWCN9ex0DaXbz4__pPevPV-MYnmUq4tJ5VQIUfXscksEdbK1dqvtvP3_yl5Jqr9XdKXNVA6lcuL7e6qfMSPkHPhIJJ4u1w7EaWa4H2MZIzw3Fkv8xXX2DDT8kWdJdfdMidA01mcP5BT_PC94DRR-NicpjtvN0E37KCiLughVuWoB4uUYqSuTYIQuuQ"
<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>