php - Google Geo API(纬度 + 经度)

Question

我目前正在尝试通过 html5 获得的 GEO 来解决我的用户位置问题，现在我正在尝试从 Google API 获取格式化的地址。

我已经这样做了:

function LatLong($Latitude, $Longitude) {


    $Url = "http://maps.googleapis.com/maps/api/geocode/json?latlng=$Latitude,$Longitude&sensor=true";


    //send request:
    $Client = curl_init($Url);

    //Set options:
    curl_setopt($Client, CURLOPT_RETURNTRANSFER, 1);

    //query the API and fetch results:
    $Response = curl_exec($Client);

    //decode the response:
    return  json_decode($Response);

}

现在，为了获得完整的结果，我尝试了这个只是为了看看它是否有效:

print_r(LatLong($_COOKIE['latitude'], $_COOKIE['longitude'])->results);

我确实得到了结果:

"results" : [
  {
     "address_components" : [
        {
           "long_name" : "4",
           "short_name" : "4",
           "types" : [ "street_number" ]
        },
        {
           "long_name" : "Neuwerk - Cuxhaven",
           "short_name" : "Neuwerk - Cuxhaven",
           "types" : [ "route" ]
        },
        {
           "long_name" : "Hamburg-Insel Neuwerk",
           "short_name" : "Hamburg-Insel Neuwerk",
           "types" : [ "sublocality_level_1", "sublocality", "political" ]
        },
        {
           "long_name" : "Hamburg",
           "short_name" : "Hamburg",
           "types" : [ "locality", "political" ]
        },
        {
           "long_name" : "Hamburg",
           "short_name" : "Hamburg",
           "types" : [ "administrative_area_level_1", "political" ]
        },
        {
           "long_name" : "Tyskland",
           "short_name" : "DE",
           "types" : [ "country", "political" ]
        },
        {
           "long_name" : "27499",
           "short_name" : "27499",
           "types" : [ "postal_code" ]
        }
     ],
     "formatted_address" : "Neuwerk - Cuxhaven 4, 27499 Hamburg, Tyskland",
     "geometry" : {
        "location" : {
           "lat" : 53.91403529999999,
           "lng" : 8.4899886
        },
        "location_type" : "ROOFTOP",
        "viewport" : {
           "northeast" : {
              "lat" : 53.91538428029149,
              "lng" : 8.491337580291502
           },
           "southwest" : {
              "lat" : 53.91268631970849,
              "lng" : 8.488639619708497
           }
        }
     },
     "place_id" : "ChIJrT-2jXcZtEcRv91jn7XQhcQ",
     "types" : [ "street_address" ]
  }

我想打印formatted_address 我尝试这样做:

print_r(LatLong($_COOKIE['latitude'], $_COOKIE['longitude'])->results->formatted_address);

但是我什么也没得到，我做错了什么？

Answer 1

正如问题中所发布的，results 是一个数组。这意味着您可能希望在获取 formatted_address 之前访问第一个元素。

试试这个:

print_r(LatLong($_COOKIE['latitude'], $_COOKIE['longitude'])->results[0]->formatted_address);