if (function_exists('geoip_detect2_get_info_from_current_ip')) {
	$userInfo = geoip_detect2_get_info_from_current_ip();
	if ($userInfo->country->isoCode == 'DE') {
		echo 'Hallo! Schön dass Sie hier sind!';
	{
} else {
	echo '<!-- Warning: The plugin GeoIP Detection is not active. -->';
}

add_action('wp_head', 'geoip_add_city_to_hash', 5);
function geoip_add_city_to_hash(){
	if (!function_exists('geoip_detect2_get_info_from_current_ip'))
		return;
	$userInfo = geoip_detect2_get_info_from_current_ip();
	$city = $userInfo->city->name;
	if ($city) {
?>
<script>
window.location.hash = <?php echo json_encode('#' . $city) ?>;
</script>
<?php
	}
}

add_action('template_redirect', 'geoip_redirect', 5);
function geoip_redirect(){
	if (is_admin() || !function_exists('geoip_detect2_get_info_from_current_ip'))
		return;
	// This condition prevents a redirect loop:
	// Redirect only if the home page is called. Change this condition to the specific page or URL you need.
	if (!is_home())
		return;
	if (!function_exists('geoip_detect2_get_info_from_current_ip'))
		return;
	$userInfo = geoip_detect2_get_info_from_current_ip();
	$countryCode = $userInfo->country->isoCode;
	switch ($countryCode) {
		case 'DE':
			$url = '/germany';
			break;
		case 'US':
			$url = '/usa';
			break;
		default:
			$url = '';
	}
	if ($url) {
		wp_redirect(get_site_url(null, $url));
		exit;
	}
}

/**
 * Calculates the great-circle distance between two points, with
 * the Haversine formula. 
 * @param float $latitudeFrom Latitude of start point in [deg decimal]
 * @param float $longitudeFrom Longitude of start point in [deg decimal]
 * @param float $latitudeTo Latitude of target point in [deg decimal]
 * @param float $longitudeTo Longitude of target point in [deg decimal]
 * @param float $earthRadius Mean earth radius in [km]
 * @return float Distance between points in [km] (same as earthRadius)
 * @see https://stackoverflow.com/a/10054282
 */
function haversineGreatCircleDistance(
  $latitudeFrom, $longitudeFrom, $latitudeTo, $longitudeTo, $earthRadius = 6371)
{
  // convert from degrees to radians
  $latFrom = deg2rad($latitudeFrom);
  $lonFrom = deg2rad($longitudeFrom);
  $latTo = deg2rad($latitudeTo);
  $lonTo = deg2rad($longitudeTo);
  $latDelta = $latTo - $latFrom;
  $lonDelta = $lonTo - $lonFrom;
  $angle = 2 * asin(sqrt(pow(sin($latDelta / 2), 2) +
    cos($latFrom) * cos($latTo) * pow(sin($lonDelta / 2), 2)));
  return $angle * $earthRadius;
}
// Los Angeles
$location['lat'] = 37.6293;
$location['lon'] = -122.1163;
$myLocation = $location; // Change if default Location should be something else
$record = geoip_detect2_get_info_from_current_ip();
if ($record->location->longitude) {
  $myLocation['lon'] = $record->location->longitude;
  $myLocation['lat'] = $record->location->latitude;  
}
$distance = haversineGreatCircleDistance($location['lat'], $location['lon'], $myLocation['lat'], $myLocation['lon']); // Returns distance in km. If you need a different unit, change the $earthRadius

if (function_exists('geoip_detect2_get_info_from_current_ip')) {
	$record = geoip_detect2_get_info_from_current_ip();
	if ($record->country->isoCode == 'DE') {
		$record = geoip_detect2_get_info_from_current_ip(null, array('source' => 'precise'));
	}
} else {
	echo '<!-- Warning: The plugin GeoIP Detection is not active. -->';
}

/**
 * Get the information from GeoNames Database
 * @param string $iso_code 2-letter ISO code of country
 * @return array Information about country and its continent,
 *               in the same format as the geoIP records but as array instead of object.
 */
function get_info_from_country($iso_code) {
	if (!function_exists('geoip_detect2_get_info_from_current_ip'))
		return array();
	$countryInfo = new \YellowTree\GeoipDetect\Geonames\CountryInformation;
	$data = $countryInfo->getInformationAboutCountry($iso_code);
	return $data;
}

function geoip_detect_enqueue_select2_jquery() {
    wp_enqueue_style( 'select2css', 'https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/css/select2.min.css' );
    wp_enqueue_script( 'select2', 'https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/js/select2.min.js', array( 'jquery' ) );
}
add_action( 'wp_enqueue_scripts', 'geoip_detect_enqueue_select2_jquery' );
function geoip_detect_init_select2_jquery() {
?>
<script>
jQuery(document).ready(function($){
    $('.wpcf7-geoip_detect2_countries, .geoip_detect2_countries').select2();
});
</script>
<?php
add_action('wp_footer', 'geoip_detect_init_select2_jquery');