On some forums you might want to remove bad html markup that’s not allowed instead of encoding it into text. Here’s a mini-plugin to do just that. It also converts <b> into <strong> and <i> into <em>

It only runs when posts are saved instead of each time they are displayed to keep things at full speed. Posts by Moderators and Administrators are not stripped.

(note: for now it doesn’t obey backticks and will strip inside them)

<?php

/*

Plugin Name: Strip Bad Markup

Plugin URI: http://bbpress.org/plugins/topic/

Description: removes tags that are not allowed in posts instead of encoding them

Author: _ck_

Author URI: http://bbShowcase.org

Version: 0.0.1

*/



add_filter('pre_post', 'strip_bad_markup',9);



function strip_bad_markup($text) {

if (!bb_current_user_can('moderate')) {

$tags=bb_allowed_tags(); $tags['br']=true; $tags['p']=true; $tags = implode('|',array_keys($tags));

$text=preg_replace(array("/<(/)?b>/si","/<(/)?i>/si"),array("<$1strong>","<$1em>"),$text);

$text=preg_replace("/</?(?!($tags)).*?>/sim","", $text);

}

return $text;

}



?>

[@johnhiler Member 16 years ago]

This looks awesome! I am going to try it out tomorrow… I noticed that some nbsp’s were being “encoded” in my bbPress installs tonight, and was wondering how I was gonna strip them out. Looking forward to trying this out .

Will report back with results.

[@_ck_ Participant 16 years ago]

Ah I didn’t think of handling  

But I thought bbpress allowed htmlentities. Maybe only some of them.