karine.do

BBcode in WordPress comments

bbcode, comments, wordpress

Here is a quick tutorial to allow your commenters to use BBcodes in the comments, without plugin. Just add this to your functions.php file :)

add_action('comment_text', 'bbcode', 2);
function bbcode($comment) {
  $comment = preg_replace('/\[img\](.*?)\[\/img\]/s','<img src="$1" width="458" />',$comment);
  $comment = preg_replace('/\[b\](.*?)\[\/b\]/s','<strong>$1</strong>',$comment);
  $comment = preg_replace('/\[u\](.*?)\[\/u\]/s','<u>$1</u>',$comment);
  $comment = preg_replace('/\[i\](.*?)\[\/i\]/s','<em>$1</em>',$comment);
  $comment = preg_replace('/\[s\](.*?)\[\/s\]/s','<del>$1</del>',$comment);
  $comment = preg_replace('/\[url=(.*?)\](.*?)\[\/url\]/s','<a target="_blank" href="$1" title="$2">$2</a>',$comment);
  $findQ = array("[quote]", "[/quote]", "[QUOTE]", "[/QUOTE]");
  $replaceQ  = array("<blockquote>", "</blockquote>", "<blockquote>", "</blockquote>");
  $comment = str_replace($findQ, $replaceQ, $comment);
  return $comment;
}

Change the width to your comments width, this way, if people post an image that is too big, it won't screw up your design.

Don't forget to give a style to the blockquote tag in your stylesheet :)

I only put the basic HTML codes, but feel free to add more, I think the pattern is pretty easy ;)