Code:
#########################################################
## Installation Level: Easy ##
## Installation Time: 2 minutes ##
## Files to edit: 3 ##
## message_parser.php ##
## bbcode.html ##
## functions_content.php ##
#########################################################
## Author Note: ##
## http://www.anonym.to/? can be changed ##
## to any custom redirecting page ##
## Compatible with PHPBB 3.0.6 ##
## By Avek ##
#########################################################
#
#-----[ OPEN ]-------------------------------------------
#
includes/message_parser.php
#
#-----[ FIND ]-------------------------------------------
# line 298
$in = 'http://' . $in;
#
#-----[ REPLACE WITH ]-----------------------------------
#
$in = 'http://www.anonym.to/?' . $in;
#
#-----[ OPEN ]-------------------------------------------
# styles/prosilver/template/bbcode.html
styles/subsilver2/template/bbcode.html
#
#-----[ FIND ]-------------------------------------------
# (line 55) || (line 36 in prosilver)
<!-- BEGIN url --><a href="{URL}" class="postlink">{DESCRIPTION}</a><!-- END url -->
#
#-----[ REPLACE WITH ]-----------------------------------
# target="_blank"
<!-- BEGIN url --><a href="http://www.anonym.to/?{URL}" class="postlink">{DESCRIPTION}</a><!-- END url -->
#
#-----[ OPEN ]-------------------------------------------
#
includes\functions_content.php
#
#-----[ FIND ]-------------------------------------------
# line 629
$html = "$whitespace<!-- $tag --><a$class href=\"$url\">$text</a><!-- $tag -->$append";
#
#-----[ REPLACE WITH ]-----------------------------------
#
$html = "$whitespace<!-- $tag --><a$class href=\"http://www.anonym.to/?$url\">$text</a><!-- $tag -->$append";
#
#-----[ SAVE/CLOSE ALL FILES ]---------------------------
#
# EOF
"http://*" and "www*" are changed to links,
so they are changed too, to http://www.anonym.to/?link