How do I limit which countries can view my website ( PHP )

Question

In there an easy way to do this in PHP. I want to make sure that only web requests from certain countries are able to access my website.

Any ideas?

Answer 1

Use an IP geolocation database (some are free) and $_SERVER["REMOTE_ADDR"] to get the visitor's IP address.

http://www.maxmind.com/app/geolitecity is a free (less accurate) version of a commercial one.