Get Geo-IP Information
Requests a geo-IP-server to check, returns where an IP is located (host, state, country, town)
[php]
<?php
$ip=’94.219.40.96′;
print_r(geoCheckIP($ip));
//Array ( [domain] => dslb-094-219-040-096.pools.arcor-ip.net [country] => DE – Germany [state] => Hessen [town] => Erzhausen )
//Get an array with geoip-infodata
function geoCheckIP($ip)
{
//check, if the provided ip is valid
if(!filter_var($ip, FILTER_VALIDATE_IP))
{
throw new InvalidArgumentException("IP is not valid");
}
//contact ip-server
$response=@file_get_contents(‘http://www.netip.de/search?query=’.$ip);
if (empty($response))
{
throw new InvalidArgumentException("Error contacting Geo-IP-Server");
}
//Array containing all regex-patterns necessary to extract ip-geoinfo from page
$patterns=array();
$patterns["domain"] = ‘#Domain: (.*?) #i’;
$patterns["country"] = ‘#Country: (.*?) #i’;
$patterns["state"] = ‘#State/Region: (.*?)<br#i’;
$patterns["town"] = ‘#City: (.*?)<br#i’;
//Array where results will be stored
$ipInfo=array();
//check response from ipserver for above patterns
foreach ($patterns as $key => $pattern)
{
//store the result in array
$ipInfo[$key] = preg_match($pattern,$response,$value) && !empty($value[1]) ? $value[1] : ‘not found’;
}
return $ipInfo;
}
?>
[/php]
Source : Get Geo-IP Information
