Address to geocode / coordinates

function.php

function geocode($address)
{
  // url encode the address
  $address = urlencode($address);
  $apiKey = GMAP_API_KEY;
  // google map geocode api url
  $url = "https://maps.googleapis.com/maps/api/geocode/json?address={$address}&key={$apiKey}";
  // get the json response
  $resp_json = file_get_contents($url);
  // decode the json
  $resp = json_decode($resp_json, true);
  // response status will be 'OK', if able to geocode given address
  if ($resp['status'] == 'OK') {
    // get the important data
    $lat = isset($resp['results'][0]['geometry']['location']['lat']) ? $resp['results'][0]['geometry']['location']['lat'] : "";
    $lon = isset($resp['results'][0]['geometry']['location']['lng']) ? $resp['results'][0]['geometry']['location']['lng'] : "";
    $formatted_address = isset($resp['results'][0]['formatted_address']) ? $resp['results'][0]['formatted_address'] : "";

    // verify if data is complete
    if ($lat && $lon && $formatted_address) {
      // put the data in the array
      return array(
        'lat' => $lat,
        'lon' => $lon,
        'address' => $formatted_address
      );

    } else {
      return false;
    }

  } else {
    echo "<strong>ERROR: {$resp['status']}</strong>";
    return false;
  }
}