PHP - Dynamic IP block script.

Please enter the following script in header file of your site which call in all pages for e.g. header.php file,

And also define IP addressed which you want to redirect to another page/link,

Example

<?php $blacklist = array("111.222.333", "444.555.666", "777.888.999");

if(in_array($_SERVER['REMOTE_ADDR'], $blacklist)) {

header("Location: http://sitename.com/404");

exit();
} ?>

Enjoy!