CNGeoip is a geographical module which allows you to identify site visitor's cities and countries by IP-address. Taking a certain IP-address, the module outputs its local registration data - a country and a city with geographic coordinates. The module consists of IP-addresses database and interfaces for interaction with the database (PHP/Perl/C). The database is consistently being updated and improved.The distribution kit is a zip-file which includes the following components: binary database, PHP-connection interface, connection examples, the instructions, and the license agreement. Perl and C/C++ connection interfaces are supplied on demand.Here are some key features of "CNGeoip":

Ссылка: http://www.cn-s..cngeoip/demo-version/cngeoip.zip