ขอตัวอย่าง code php การ get country ด้วย ip address หน่อยค่ะ

/*Get user ip address details with geoplugin.net*/
$geopluginURL='http://www.geoplugin.net/php.gp?ip='.$ipaddress;
$addrDetailsArr = unserialize(file_get_contents($geopluginURL)); 

$city = isset($addrDetailsArr['geoplugin_city']) ? $addrDetailsArr['geoplugin_city'] : 'Not Define';
$country = isset($addrDetailsArr['geoplugin_countryName']) ? $addrDetailsArr['geoplugin_countryName'] : 'Not Define';
$request = isset($addrDetailsArr['geoplugin_request']) ? $addrDetailsArr['geoplugin_request'] : 'Not Define';
$status = isset($addrDetailsArr['geoplugin_status']) ? $addrDetailsArr['geoplugin_status'] : 'Not Define';
$credit = isset($addrDetailsArr['geoplugin_credit']) ? $addrDetailsArr['geoplugin_credit'] : 'Not Define';
$region = isset($addrDetailsArr['geoplugin_region']) ? $addrDetailsArr['geoplugin_region'] : 'Not Define';
$areaCode = isset($addrDetailsArr['geoplugin_areaCode']) ? $addrDetailsArr['geoplugin_areaCode'] : 'Not Define';
$dmaCode = isset($addrDetailsArr['geoplugin_dmaCode']) ? $addrDetailsArr['geoplugin_dmaCode'] : 'Not Define';
$countryCode = isset($addrDetailsArr['geoplugin_countryCode']) ? $addrDetailsArr['geoplugin_countryCode'] : 'Not Define';
$countryName = isset($addrDetailsArr['geoplugin_countryName']) ? $addrDetailsArr['geoplugin_countryName'] : 'Not Define';
$continentCode = isset($addrDetailsArr['geoplugin_continentCode']) ? $addrDetailsArr['geoplugin_continentCode'] : 'Not Define';
$regionCode = isset($addrDetailsArr['geoplugin_regionCode']) ? $addrDetailsArr['geoplugin_regionCode'] : 'Not Define';
$regionName = isset($addrDetailsArr['geoplugin_regionName']) ? $addrDetailsArr['geoplugin_regionName'] : 'Not Define';
$currencyCode = isset($addrDetailsArr['geoplugin_currencyCode']) ? $addrDetailsArr['geoplugin_currencyCode'] : 'Not Define';
$currencySymbol = isset($addrDetailsArr['geoplugin_currencySymbol']) ? $addrDetailsArr['geoplugin_currencySymbol'] : 'Not Define';
$currencySymbolUTF8 = isset($addrDetailsArr['geoplugin_currencySymbol_UTF8']) ? $addrDetailsArr['geoplugin_currencySymbol_UTF8'] : 'Not Define';
$currencyConverter = isset($addrDetailsArr['geoplugin_currencyConverter']) ? $addrDetailsArr['geoplugin_currencyConverter'] : 'Not Define';