The problem is that $user_id = bbp_get_topic_author_id( $topic_id = 0 ) is malformed. You need to remove the = 0 from $topic_id = 0 and make sure that the variable $topic_id actually contains the ID of the topic you are trying to get the author of.
I add a show contents part referring to a workable previous post with link https://bbpress.org/forums/topic/add-custom-text-fields-to-reply-form/. The below code can provide options for the user to selection. But the selection result could not be shown. I am not sure whether the selection result was added into metabox properly because I can not use the debug function. … Read more
Importing a Google Group to bbPress
You could remove the #postNumber part from the url, you can do something like this $reply_url = explode(‘#’, bbp_get_reply_url($reply_id))[0];
How to exclude one parent id from post_parent’ => ‘any’, in WordPress / bbPress?
Can i use 2 page content-forum & content-forum-slug on bbpress?
How can I combine WordPress default Tags and bbPress tags into one archive page?
Add videos/images preview to bbPress attachment
If you are not going to use a ready made forum platform like : SMF phpBB Vbulletin myBB Vanilla becuase that site is not all forum but also a forum and you want wordpress as your platform then i would suggest you look at SimplePress as your forum plugin which is very mature and is … Read more
I think including a counter like this would do the trick. Does this help? <?php $showposts=2; $counter=0; while ( bbp_topics() ) : bbp_the_topic(); $counter++; if(counter<=$showposts) { ?> /*** Do stuff ***/ <?php } else { break; } endwhile; ?>