ip_country
From CashCrusaderWiki
Use ip_country() function to get country name for an IP address.
To get country information for the current visitor/user, do not call ip_country($_SESSION['REMOTE_ADDR']), use ip_country constant instead as it already includes the country name.
Required CashCrusader version: 3.0.0
Example usage:
<?php echo ip_country('8.8.8.8'); ?>