Как получить страну пользователя в PHP

<?php
         function get_visitor_ip(){
		$ipaddress = '';
		if (getenv('HTTP_CLIENT_IP'))
			$ipaddress = getenv('HTTP_CLIENT_IP');
		else if(getenv('HTTP_X_FORWARDED_FOR'))
			$ipaddress = getenv('HTTP_X_FORWARDED_FOR');
		else if(getenv('HTTP_X_FORWARDED'))
			$ipaddress = getenv('HTTP_X_FORWARDED');
		else if(getenv('HTTP_FORWARDED_FOR'))
			$ipaddress = getenv('HTTP_FORWARDED_FOR');
		else if(getenv('HTTP_FORWARDED'))
			$ipaddress = getenv('HTTP_FORWARDED');
		else if(getenv('REMOTE_ADDR'))
			$ipaddress = getenv('REMOTE_ADDR');
		else
			$ipaddress = 'UNKNOWN';

		return $ipaddress;
	}
        $ipaddress= get_visitor_ip(); // Store the IP address

<?php
     $response = file_get_contents('http://www.geoplugin.net/json.gp?   ip='.$ipaddress);
     $data =  @json_decode($response);
     $country = $data->geoplugin_countryName;
     $state = $data->geoplugin_region;
     $latitude = $data->geoplugin_latitude;
     $longitude = $data->geoplugin_longitude;
     $currency_symbol =  $data->geoplugin_currencySymbol;

/*
Выход:

    Country Name:    United States
    State Name:       Alaska
    Latitude:        45.8491
    Longitude:       -119.7143
    Currency Symbol: $

*/