[PHP] Get the administrative number of a region from a Chilean address

gistfile1.php

//kinda oldschool but it could help you in some project in Chile

$address = urlencode(utf8_encode($_GET['address']));
$geocode = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='. $address .'&region=cl&sensor=false');
$output= json_decode($geocode);
for ( $i = 0; $i < count ( $output->results[0]->address_components ); $i ++ ) {
    switch ( $output->results[0]->address_components[$i]->types[0] ) {
        case "administrative_area_level_1":
            $region = $output->results[0]->address_components[$i]->long_name;
        break;
    }
}
 
$latitude = $output->results[0]->geometry->location->lat;
$longitude = $output->results[0]->geometry->location->lng;
 
if ($region == 'Tarapacá') { $region_id = '1'; }
elseif ($region == 'Atacama') { $region_id = '3'; }
elseif ($region == 'Coquimbo') { $region_id = '4'; }
elseif ($region == 'Santiago Metropolitan Region') { $region_id = '13'; }
elseif ($region == 'Los Lagos') { $region_id = '10'; }
elseif ($region == 'Valparaíso') { $region_id = '5'; }
elseif ($region == 'Antofagasta') { $region_id = '2'; }
elseif ($region == "O'Higgins Region") { $region_id = '6'; }
elseif ($region == 'Maule') { $region_id = '7'; }
elseif ($region == 'Bío-Bío') { $region_id = '8'; }
elseif ($region == 'Araucanía') { $region_id = '9'; }
elseif ($region == 'Aysén Region') { $region_id = '11'; }
elseif ($region == 'Magallanes and Antártica Chilena Region') { $region_id = '12'; }
elseif ($region == 'Los Ríos Region') { $region_id = '14'; }
elseif ($region == 'Arica and Parinacota Region') { $region_id = '15'; }

print(The administrative number from ".$address." (lat:".$latitude.", lng:".$longitude.") it's: ".$region_id." );