I just figured that blocking special IPs from viewing my ads would be a good idea (read: my own and my school's), that way there would be no way any invalid clicks would be registered from an IP I frequent together with 1200 other users and thus making the AdSense support team happy.

I set on to a journey to the support forums of my blog software, Nucleus CMS, they kindly provided me with this PHP code:

ads.php

<?php

$blocked_ips = array("12.34.56.78","98.76.54.32");
$current_ip = $_SERVER["REMOTE_ADDR"];

if (!in_array($current_ip, $blocked_ips)) {
    include("path/to/adsense.txt");
}

?>

The IPs blocked go into the array, contained by quotation marks and separated by commas, the AdSense code, or whatever you want to hide from a designated IP goes into the path on line 7, the path being the server path (such as /home/obli/obli.net/file.php in my case).

Ads.php is then included into wherever you want to (not) show your ads using:


<?php include($DOCUMENT_ROOT . "ads.php");?>

...Or a special include tag unique to your blog software.

Props to Armon for writing the code, although I think it took him little effort, it's still a miracle to us who are not blessed with PHP.

I've gotta start learning some PHP...

Alternative way (does not work with adsense):
In case you want to ban IPs from viewing your entire website (or just a directory), that easy, just add this to your .htaccess file:

order allow,deny
deny from 12.34.56.78
allow from all