Change web banner image based upon country of the visitor - php

Question

I have a small website (using HTML, PHP and MySQL), and would like to display a specific banner image according to the country of the visitor. Each country has a different banner image.
I have searched Google for solutions and found quite some API's (such as HostIP) that allow to return the country based upon the IP address. That's nice, but I could not find how to implement it for my purpose to make the image switch according to the country...
I have no developer knowledge. Can anyone help me out?

Answer 1

Get Geo-IP Information
Requests a geo-IP-server (netip.de) to check, returns where an IP is located (host, state, country, town).
<?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;
}
?>

Answer 2

to complete the anwer of Avinash, is this the right solution to switch image based upon country?
function switchImage($var) {
switch ($var)
{
case "United states":
$source = '/images/US.png';
$class = 'myClass';
$alt = 'myAlt';
break;
case "United Kingdom":
$source = '/images/UK.png';
$class = 'myClass';
$alt = 'myAlt';
break;
.
.
.
default:
return "Default"; //default case
}
}