find visitor location php

<?php
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: (.*?)&nbsp;#i';
 
$patterns["country"] = '#Country: (.*?)&nbsp;#i';
 
$patterns["state"] = '#State/Region: (.*?)<br#i';
 
$patterns["town"] = '#City: (.*?)<br#i';
 
//Array where results will be stored
 
$ipInfo=array();
 
// &nbsp;
 
//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';
 
}
/*I've included the substr function for Country to exclude the abbreviation (UK, US, etc..)
To use the country abbreviation, simply modify the substr statement to:
substr($ipInfo["country"], 0, 3)
*/
$ipdata = $ipInfo["town"]. ", ".$ipInfo["state"].", ".substr($ipInfo["country"], 4);
 
return $ipdata;
 
}
$ip = '';
/*

 
echo geoCheckIP($ip);*/
//echo $ip = $_SERVER['REMOTE_ADDR'];
$ram = geoCheckIP($ip);
echo $ram;
?>