Here’s how to strip bad markup instead of encoding it
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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;
}
?>
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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.
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