function i2c_go()
{
global $COUNTRY;
// Get the real IP of the user
$ipnum = i2c_realip();
// User already has a country detected with this IP stored
if (!empty($_COOKIE['COUNTRY']) && strpos($_COOKIE['COUNTRY'], ',') !== FALSE) {
list($COUNTRY, $storedip) = explode(",", $_COOKIE['COUNTRY']);
if ($storedip == $ipnum) {
return TRUE;
}
}
// Convert the IP number to some useable form for searching
$ipn = (double) sprintf("%u", ip2long($ipnum));
// Find the index to start search from
$idx = i2c_search_in_index($ipn);
// If we were unable to find any helpful entry
// in the index do not search, as it would take
// a very long time. It is an error, if we have
// not found anything in the index
if ($idx !== FALSE) {
$country = i2c_search_in_db($ipn, $idx);
} else {
$country = 'NA';
}
// Set global variable for further usage
$COUNTRY = $country;
// Set the country in a cookie for a week
return setcookie("COUNTRY", "{$country},{$ipnum}", 60 * 60 * 24 * 7);
}
function i2c_get_country($ip = false)
{
if ($ip === false) {
$ip = $_SERVER['REMOTE_ADDR'];
}
$ipn = (double) sprintf("%u", ip2long($ip));
$idx = i2c_search_in_index($ipn);
if ($idx !== false) {
$country = i2c_search_in_db($ipn, $idx);
} else {
$country = 'N0';
}
return $country;
}
