Php redirect based from ip

php_redirect_based_ip.php

<?php
 
$ip = explode(".", $_SERVER['REMOTE_ADDR']); // Save in the array "ip" the octects of the ip
 
if ($ip[0] == 192) { // read the first octect, and for example, if you are from the internal lan, where the pc's ip start with "192" redirect to "index_lan.html"
	header("location: index_lan.html");
	}
		else { // if the ip doesn't start with 192, redirect to "index_wan.html"
			header("location: index_wan.html");
	};	
	
?>