How can I get user's country flag on my site

Question

I wanna display user\'s/visitor\'s country flag on my site.

I am using different technologies like php,jsp and simple html. So I want a code which by placing on my site,

Answer 1

You can use the GeoIP extension and then map the country in question to a given icon.

$countryName = geoip_country_name_by_name($_SERVER['REMOTE_ADDR']);
echo $countryName;

Note that getting the country via IP is not exact.