Hi, everyone. I'm trying to create a code to get a search result for visitor's location. The website I work with grabs the data from the database, and display the search result. Visitors can filter this result by US states. What I would like to do is, when visitors open the search result webpage, it should show them result according to their location without log in or registration as many sites do.
I made some small research, and I would like to make it as simple as possible.
I've grabbed the script, but I have a difficulty to integrate it, and run query. I'm pretty new in php development, so I will be glad if someone could help me in codding and some ideas. Thanks in advance.

<?php
$ip = getenv("REMOTE_ADDR");
print_r(geoCheckIP($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: (.*?)&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();

//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['state'];
}

?>
There is some issue with print_r function, it doesn't print any info. The point is return $ipInfo by state to use it in sql query.
What do you think about it?

Thanks