

iNod said:They use PHP or another programming language and either .htaccess or naming the image something.php
A simple
<?php
$ip = $_SERVER['REMOTE_ADDR'];
?>
With a header("Content Type: image/jpeg"); saved as image.php and included in a <img src="image.php"> works just fine. Or you could do it even more simplier and just have a PHP file and use mod_rewrite to get it into an image format for use.
- Steve




