https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx8cea0375263fa5df&secret=9e8b62a40f3cf44c39ada17da9e31662&code=&grant_type=authorization_codearray(2) {
  [0]=>
  int(412)
  [1]=>
  string(0) ""
}