First of all thanks to all ....
I read that i can use the free IP geolocation webservice to get Country name from an Ip address. But how i get the response to my si
http://www.maxmind.com/app/php
You need to install the php module and then use the following code to get the country name:
$country_name = apache_note("GEOIP_COUNTRY_NAME");
Have checked this functionality in Oplim? It is free for up to 500k pageviews, and you can set your code and custom condition (country, or even areas such as all the EU).
Disclosure: I am among the service developers.
geoip_country_code_by_name can give you the country for an arbitrary IP address or hostname (not just the one from the current visitor as apache_note("GEOIP_COUNTRY_NAME")
does), it uses the same MaxMind database. There is also the geoip_country_name_by_name
function if you want the full country name rather than the ISO code.