The bug you have run into is fixed in the latest trunk release, or you can see this thread and this post specifically about the change to make:
PHP Error Messages
It’s been discussed before as well:
https://bbpress.org/forums/topic/warning-invalid-argument-supplied-for-foreach-in-bb-settingsphp-on-line-173
https://bbpress.org/forums/topic/installation-problem-cannot-modify-header-information
It’s just a php warning, and your server is configured to show warnings, so you see it. It does point to a problem with the code, but even with the warning, everything still works fine.
Thanks chrishajer and Trent. That was what I was leaning towards doing. I thought maybe there’s a way to incorporate bbPress’s loop inside WP’s.
Now back to the drawing board creating the site’s common theme for bbP and WP.
If you search in https://wordpress.org/extend/plugins/ there is actually a plugin to do this for wordpress if I am not mistaken as well, but I use the way that chrishajer suggests myself as RSS feeds are easy to change and doesn’t require bbPress be in the same database 
Trent
Do you have a link to your forum for a little testing?
Trent
How about using a WordPress plugin to display items from the Latest Discussion RSS feed from your forum?
https://wordpress.org/extend/plugins/tags/syndication
or
http://wp-plugins.net/category/Feed_Syndication/
I found a bug for the latest version of bbPress.
If you delete a topic, tags for that topic still remains in the hot tags list.
I am gonna revive this one.. At some point my email notifications stopped working and it doesnt look like anything new has been created for notifications.
I have downloaded the latest from
http://thomasklaiber.com/bbpress/post-notification/
and it still doesnt work. Anybody else know how I can get this back???
Oh.
I think what you want then is something that can display an RSS feed in your bbPress sidebar. I can’t recall if there is something like that now, for bbPress, but if there is, it would be a plugin.
WordPress has lots of plugins like that, to display RSS content in your WordPress sidebar, maybe something like that could be adapted to bbPress.
There was an old discussion of a bbPress plugin here but I don’t know if that plugin will work any more. Maybe it could be modified, if necessary, to use the latest bbPress.
Good luck.
Which version of bbPress was this? 0.8.3.1 or latest trunk?
I have no backslashes (“”) at all in my pluggable.php file 
However, while I have the same problem of NO OUTBOUND EMAIL when I tested, it must work sometimes because I got some new members yesterday that are posting. But I’ve got a bunch of others whose last log on was “NEVER”….hmmmm
Something is definitely wrong
Martino, I think this is related to some magic_quotes configuration from your webhost.
first disable all plugins and do some test post (tell us if you get the backslashes after doing so)
IIS 6.0
windows server 2003
the site is on a dedicated server. Not sure if it is a server setting or a synch issue / coding issue with bbpress and wpress.
after more testing here is what works currently.
– Wp lost password and new registration works fine now as far as emailing out.
– bbpress will email a notification when someone posts a new comment to your “favorites” topic
-bbpress will NOT email out a new registration or a lost password
Does that help in any to narrow it down?
I’ve gone over the configuration file, and it all looks correct. I am installing in forums.nerdgrind.com, which I gave it’s own directory, so there is no wordpress installation sharing the forums directory. I’m not sure why I keep getting this error:
bbPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘ ”, , ”, ‘2008-01-16 00:57:55” at line 4]
INSERT INTO bb_topics (topic_title, topic_slug, topic_poster, topic_poster_name, topic_last_poster, topic_last_poster_name, topic_start_time, topic_time, forum_id) VALUES (‘Your first topic’, ‘your-first-topic’, , ”, , ”, ‘2008-01-16 00:57:55’, ‘2008-01-16 00:57:55’, 1)
The database is setup, and all other tables are created except this one. I am using the latest bbPress.
This is fixed in the latest trunk by the way.
version 0.8.3.1 – bbpress and WordPress (Version 2.3.2).. Nt Box
Clarification Below.
do you now of any bugs in the synchronizing of wp an bbp. I am testing these sytems and having issues with email registrations. I get an email notification in wp letting me know there is a new registrant but no registration password and link come through. When you register in bpress nothing happens other then saying password was sent.
Even more odd is the fact that email notification for favorites in bbpress works just fine. I have no idea what the issue is. can anyone help me.. At this point I would donate to your cause if you can get this to work/synchronize.
sit is located at homesandagents dot com
Sam, there are no trac tickets that I know of, just forum reports. I’ve already provided links to those. I hesitate to create a trac ticket myself since I have not experienced it first hand. I suspect the developers haven’t either, which is why it appears to still be happening.
Maybe instead of trying to recreate the problem, someone can look at lines 168 – 172 in bb-settings.php and see if the warning thrown on line 169 has a good reason. It certainly seems to be related to a missing my_plugins or bb-plugins folder, and no underscore plugins. I thought there was a difference between PHP4 and PHP5 at some point, but maybe that’s a red herring.
Also, since it’s just a warning, maybe it’s not really a hard error, just a warning, but the server is configured to show warnings, thus the warning comes first and then you get the “cannot modify header information” because the warning came first. Maybe the server needs to be configured to show warnings for this to happen? Is there an .htaccess directive to force PHP to show warnings, or maybe another way to test this?
(BTW, I just checked out 0.8.3.1 and configured my server to use PHP4 and I do not have this error. In the stock install, there is no my-plugins or bb-plugins folder. So, maybe it is throwing a warning but my server is not configured to show them?)
do you now of any bugs in the synchronizing of wp an bbp. I am testing these sytems and having issues with email registrations. I get an email notification in wp letting me know there is a new registrant but no registration password and link come through. When you register in bpress nothing happens other then saying password was sent.
Even more odd is the fact that email notification for favorites in bbpress works just fine. I have no idea what the issue is. can anyone help me.. At this point I would donate to your cause if you can get this to work/synchronize.
sit is located at homesandagents dot com
What version are you using? In the trunk, line 169 of bb-settings.php does not have a foreach statement, so maybe you’re using something other than the trunk release?
That error is related to not having a my-plugins folder and I think possibly not having any plugins in that folder that start with an underscore.
This was talked about a couple times:
https://bbpress.org/forums/topic/warning-invalid-argument-supplied-for-foreach-in-bb-settingsphp-on-line-173
https://bbpress.org/forums/topic/installation-problem-cannot-modify-header-information
https://bbpress.org/forums/topic/php-error-site-mangement-plugins-page
I thought the latest 0.8.3.1 release took care of that, but maybe it doesn’t.
If it were me, I would try creating a my-plugins directory, and then making sure there were some plugins in that folder.
If you use the latest trunk from the subversion repository then this setting is made in the database rather than the config file.
Scroll to the bottom of this page and use the “Zip Archive” link.
Although a little new, trunk should be stable enough to use right now (rev.1010).
Better still, install trunk using subversion and then updating is much simpler.
This information will only affect those following the bleeding edge of bbPress and WordPress development.
bbPress now has implemented in it’s trunk both the new “phpass” hashing for passwords and the new “authcookie” cookie methods which are slated for release in WordPress 2.5
This means that if you are integrating WordPress and bbPress then you can now test out the latest versions of each.
If you have any feedback or problems with integration then post here or on the bbDev mailing list.
Hello,
I’m sorry if this is not the right place to post. I have a blog running latest WP version and i would like to do some work integration/customisation with BBPress. I’m looking for an experienced bbpress developer that can help on this project on an ongoing basis. If you are interested, please contact me.
Hello all,
I recently dove into the exciting world of BBPress, and in the midst of working out a custom theme (tweaking structure as well), I was wondering if the following things were even possible to do, or are they more suited to be plugin requests?
– attach forum name to latest topics of main page. ie I want to have a topic display like this:
“Plugins | Lorem ipsum dolor sit amet”
(where “Plugins” is the forum name and “Lorem ipsum dolor sit amet” is the topic, obviously.
– Within each topic, separate the original post from the comments. I guess this is similar to how a blog entry is; with the entry featured at the top, and the comments displayed below and less prominently. It seems like the way BBPress is coded they can only be stacked on top of each other and have a similar design treatment?
– Tweak post count so that if no has yet replied to a post it is “0” instead of “1”
Hopefully these are just things that are right under my nose that I haven’t been able to figure out, but let’s see…
Thanks!
Hey Everyone,
I have read through tons of posts with email problems…and I have still not been able to resolve the issue I’m having.
If you goto this URL, you will see that the mail test php file I put on my server works fine: http://www.crookedhook.net/forum/mailtest.php
I recieve the email and everything.
But when you try to reset your password (any user!) or just wait for EMAIL conformation about the forum. The email is never sent and it never reaches the clients address. JUNK MAIL folders are EMPTY, the mail is not getting caught up in that.
I had wordpress installed for this site, then we decided not to use wordpress and to go with BBPRESS. So basically I deleted the wordpress folder, and uploaded the BBPRESS Files. Put in my mySQL infor chaned a few things in config, so it has my email etc… and it worked! just the email isn’t!
Maybe I missed a setting or something in the setup?
Hopefully someone can help!?
Talk to you all soon!
CHEERS