Reputation: 123

get country, region and city name from longitude and latitude (PHP)

I would like to get country, pincode,state and city name from longitude and latitude over Google maps API - with PHP. but sometimes it works correct, but sometime it gets wrong information and many times it returns null values because the result comes is dynamic not fixed.

so anybody suggest me how to make this dynamic and check inside is country city pincode and state are available in any of the array index from result ....

below is my code...

$fromlat = $this->request->data['Order']['from_lat'];
            $fromlong = $this->request->data['Order']['from_long'];

            $geocode = file_get_contents('http://maps.googleapis.com/maps/api/geocode/json?latlng='.$fromlat.','.$fromlong.'&sensor=false');
            $json = json_decode($geocode);

            //print_r($geocode); 
            $country = $json->{'results'}[1]->{'address_components'}[3]->{'long_name'};
            $state = $json->{'results'}[1]->{'address_components'}[2]->{'long_name'};
            $city = $json->{'results'}[1]->{'address_components'}[1]->{'long_name'};            
            $locality = $json->{'results'}[1]->{'address_components'}[0]->{'long_name'};        
            $pincode = $json->{'results'}[1]->{'address_components'}[4]->{'long_name'};                 
            echo $locality."</br>".$country."</br>".$state."</br>".$city."</br>".$pincode;

i need to check types in address components like below in result forloop and if available then display result.

 types = country = country name;
            types = administrative_area_level_1 = state name ;
            types = administrative_area_level_2 = city name ;
            types = postal_code = pincode ;

below is my result array...

Upvotes: 0

Answers (2)

Hash

Reputation: 31

Proper way to extract values of address components is done as following :

    if (results[0]) {
            $("input[name=lat]").val(results[0].geometry.location.lat());
            $("input[name=lng]").val(results[0].geometry.location.lng());

            var addressArr = [];
            $.each(results[0].address_components, function (key, val) {
                if (!$.inArray("country", results[0].address_components[key].types)) {
                    addressArr['country'] = results[0].address_components[key].long_name;
                }
                if (!$.inArray("administrative_area_level_1", results[0].address_components[key].types)) {
                    addressArr['state'] = results[0].address_components[key].long_name;
                }
                if (!$.inArray("administrative_area_level_2", results[0].address_components[key].types)) {
                    addressArr['city'] = results[0].address_components[key].long_name;
                }
            });
            console.log(addressArr);
        }
    }

Upvotes: 2

cnizzardini

Reputation: 1240

I have some similar code that is known to work. Basically it can return a results array if there are more than one results possible or just an object if only one result is found. My use-case is slightly different, but hopefully it helps. Try this:

    $ch = curl_init();
    $geoCodeUrl = 'https://maps.googleapis.com/maps/api/geocode/json?address=' . $zip . ',+United+States&key=' . $googleApiKey;
    curl_setopt($ch,CURLOPT_URL, $geoCodeUrl);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    $result = curl_exec($ch);
    curl_close($ch);

    $GeoCode = json_decode($result);
    $GeoLocator = new \stdClass();

    if( isset($GeoCode->results[0]) ){
        $GeoLocator->lat = $GeoCode->results[0]->geometry->location->lat;
        $GeoLocator->lon = $GeoCode->results[0]->geometry->location->lng;
        foreach($GeoCode->results[0]->address_components as $comp){
            if( in_array('locality',$comp->types) ){
                $GeoLocator->city = trim($comp->short_name);
            }
            else if( in_array('administrative_area_level_1',$comp->types) ){
                $GeoLocator->state = strtoupper(trim(preg_replace('/\d/', '', $comp->short_name)));
            }
        }

    }
    else if( isset($GeoCode->results) && isset($GeoCode->results->geometry) ){
        $GeoLocator->lat = $GeoCode->results->geometry->location->lat;
        $GeoLocator->lon = $GeoCode->results->geometry->location->lng;
        foreach($GeoCode->results->address_components as $comp){
            if( in_array('locality',$comp->types) ){
                $GeoLocator->city = trim($comp->short_name);
            }
            else if( in_array('administrative_area_level_1',$comp->types) ){
                $GeoLocator->state = strtoupper(trim(preg_replace('/\d/', '', $comp->short_name)));
            }
        }
    }

Upvotes: 0

get country, region and city name from longitude and latitude (PHP)

Answers (2)

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