array(4) {
  ["status"]=>
  int(0)
  ["message"]=>
  string(7) "Success"
  ["request_id"]=>
  string(32) "9e4c5a9cb20b4bfd9a431d2415d6fb5f"
  ["result"]=>
  array(3) {
    ["ip"]=>
    string(13) "216.73.216.29"
    ["location"]=>
    array(2) {
      ["lat"]=>
      float(38.8833)
      ["lng"]=>
      int(-77)
    }
    ["ad_info"]=>
    array(6) {
      ["nation"]=>
      string(6) "美国"
      ["province"]=>
      string(0) ""
      ["city"]=>
      string(0) ""
      ["district"]=>
      string(0) ""
      ["adcode"]=>
      int(-1)
      ["nation_code"]=>
      int(840)
    }
  }
}