Google Maps for Plugin JSON

Hello,

I need some help how to get the answers from them google API into PHP.

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "51061",
               "short_name" : "51061",
               "types" : [ "postal_code" ]
            },
            {
               "long_name" : "K?ln",
               "short_name" : "K?ln",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "K?ln",
               "short_name" : "K",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Nordrhein-Westfalen",
               "short_name" : "NRW",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "Deutschland",
               "short_name" : "DE",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "51061 K?ln, Deutschland",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 51.0225911,
                  "lng" : 7.0548179
               },
               "southwest" : {
                  "lat" : 50.973904,
                  "lng" : 6.962263
               }
            },
            "location" : {
               "lat" : 50.9958446,
               "lng" : 7.004471499999999
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 51.0225911,
                  "lng" : 7.0548179
               },
               "southwest" : {
                  "lat" : 50.973904,
                  "lng" : 6.962263
               }
            }
         },
         "place_id" : "ChIJZbBmcTMvv0cRcJElq_9gJxw",
         "types" : [ "postal_code" ]
      }
   ],
   "status" : "OK"
}

For the Geodata and the formated address it is works fine.

$_lat = $_coordinates->results[0]->geometry->location->lat;
$_lng = $_coordinates->results[0]->geometry->location->lng;
$_formAddress = $_coordinates->results[0]->formatted_address;

But how do I get the

administrative_area_level_1

I tried

$_theLand = $_coordinates->results[0]->address_components[0]->administrative_area_level_1;

but nothing returns only NULL.

Any suggestion?

Denis