get ip address

Hey guys

I got this code

function validip($ip) {

   if (!empty($ip) && ip2long($ip)!=-1) {

       $reserved_ips = array (

       array('0.0.0.0','2.255.255.255'),

       array('10.0.0.0','10.255.255.255'),

       array('127.0.0.0','127.255.255.255'),

       array('169.254.0.0','169.254.255.255'),

       array('172.16.0.0','172.31.255.255'),

       array('192.0.2.0','192.0.2.255'),

       array('192.168.0.0','192.168.255.255'),

       array('255.255.255.0','255.255.255.255')

       );



       foreach ($reserved_ips as $r) {

           $min = ip2long($r[0]);

           $max = ip2long($r[1]);

           if ((ip2long($ip) >= $min) && (ip2long($ip) <= $max)) return false;

       }

       return true;

   } else {

       return false;

   }

}

function getip() {

   if (validip($_SERVER["HTTP_CLIENT_IP"])) {

       return $_SERVER["HTTP_CLIENT_IP"];

   }

   foreach (explode(",",$_SERVER["HTTP_X_FORWARDED_FOR"]) as $ip) {

       if (validip(trim($ip))) {

           return $ip;

       }

   }

   if (validip($_SERVER["HTTP_X_FORWARDED"])) {

       return $_SERVER["HTTP_X_FORWARDED"];

   } elseif (validip($_SERVER["HTTP_FORWARDED_FOR"])) {

       return $_SERVER["HTTP_FORWARDED_FOR"];

   } elseif (validip($_SERVER["HTTP_FORWARDED"])) {

       return $_SERVER["HTTP_FORWARDED"];

   } elseif (validip($_SERVER["HTTP_X_FORWARDED"])) {

       return $_SERVER["HTTP_X_FORWARDED"];

   } else {

       return $_SERVER["REMOTE_ADDR"];

   }

}

echo getip();

PHP:

But there has to be a better way of doing it

 

if you want to retrieve the ip of the visitor
use:

$ip = $_SERVER['REMOTE_ADDR'];

 

How did you take something so simple and make it so complicated?

 

Depends how much "validation" you want. If you want to just make sure that the IP address is "valid", it has be 4 numbers from 0-255 separated by full stops. If you want "private" vs public addresses, then you need more code, like you did.

 

That script gets the IP Address regardless of the proxy

$_SERVER['REMOTE_ADDR']

Would get the proxy ip address