Title: Bad Behavior Plugin Warning Message Last modified: August 20, 2016 --- # Bad Behavior Plugin Warning Message * Resolved [genegem](https://wordpress.org/support/users/genegem/) * (@genegem) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/) * Just updated and got warning message (see below) so deactivated. Is there a bug in the latest update? * Warning: Invalid argument supplied for foreach() in /home/genegem/public_html/ loseweightfastsystems.com/wp-content/plugins/bad-behavior/bad-behavior/blacklist. inc.php on line 176 * Warning: Cannot modify header information – headers already sent by (output started at /home/genegem/public_html/loseweightfastsystems.com/wp-content/plugins/bad- behavior/bad-behavior/blacklist.inc.php:176) in /home/genegem/public_html/loseweightfastsystems. com/wp-content/plugins/bad-behavior/bad-behavior/screener.inc.php on line 9 * > Thank you for contacting HostGator. There is an error in the code for the plugin > as I see the same error for a test WordPress installation. I suggest you contact > the developer of the plugin at [http://wordpress.org/support/plugin/bad-behavior](http://wordpress.org/support/plugin/bad-behavior) > in regards to this issue. > If you have any questions or concerns, please don’t hesitate to contact us. > We are more than happy to assist you. > Best regards, > Samuel H. > Linux Systems Administrator HostGator.com LLC * [http://wordpress.org/extend/plugins/bad-behavior/](http://wordpress.org/extend/plugins/bad-behavior/) Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/page/2/?output_format=md) [→](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/page/2/?output_format=md) * Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/) * (@jdembowski) * Forum Moderator and Brute Squad * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013110) * > Warning: Cannot modify header information – headers already sent by * Please give this a read. * [http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F) * And double check your `wp-config.php` file. Somewhere there is a white space in it. * Thread Starter [genegem](https://wordpress.org/support/users/genegem/) * (@genegem) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013114) * Thank You. I’m not a coder so no point me looking for spaces whether black, white or purple. Wasn’t a problem before the update so was simpler just to deactivate and delete. * Thread Starter [genegem](https://wordpress.org/support/users/genegem/) * (@genegem) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013115) * Obviously a fault in the update because previous versions didn’t give these errors so I guess it’s simpler to stop using it and delete it altogether until the developer sorts out his bugs. * Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/) * (@jdembowski) * Forum Moderator and Brute Squad * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013117) * That is your choice of course, and my advice is always “you should do what you want”. 😉 * But I’ve just installed the version 2.2.9 of that plugin. The plugin is fine and it is probably your `wp-config.php` file. 99.999% of the time that’s the culprit. * [zicocarioca](https://wordpress.org/support/users/zicocarioca/) * (@zicocarioca) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013130) * Hi… I tried the proposed solution [above](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F) and it didn’t work. I think I did the whole thing just right, but nothing… It just didn’t work. * Also, no apparently meaningful white spaces found on the described code. I don’t think I can find a solution by myself. * Some help will be kindly appreciated. * **Can anyone please** take me back to the previous version of BadBehavior? I just can’t find a link to the version 2.2.8 * Thanks in advance! * Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/) * (@jdembowski) * Forum Moderator and Brute Squad * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013133) * Looks like you’re not alone alright. * See this reply for more details on how to check your `wp-config.php` file (if that’s it or not). * [http://wordpress.org/support/topic/plugin-bad-behavior-latest-update-broke-my-site?replies=2#post-3129787](http://wordpress.org/support/topic/plugin-bad-behavior-latest-update-broke-my-site?replies=2#post-3129787) * [@zicocarioca](https://wordpress.org/support/users/zicocarioca/), the older versions can be manually downloaded from the Developers tab on that page. * [http://wordpress.org/extend/plugins/bad-behavior/developers/](http://wordpress.org/extend/plugins/bad-behavior/developers/) * The link for 2.2.8 is [http://downloads.wordpress.org/plugin/bad-behavior.2.2.8.zip](http://downloads.wordpress.org/plugin/bad-behavior.2.2.8.zip) * [zicocarioca](https://wordpress.org/support/users/zicocarioca/) * (@zicocarioca) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013135) * Thanks a lot for the help and also the link **[@jan](https://wordpress.org/support/users/jan/)**! Somehow I couldn’t think of such a simple yet clever way to find that version again. * Cheers! * P.S: Even though I’m not a coder I suspect there’s some conflict between the most recent version of BadBehavior (2.2.9) and some other installed plugin. * Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/) * (@jdembowski) * Forum Moderator and Brute Squad * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013140) * > P.S: Even though I’m not a coder I suspect there’s some conflict between the > most recent version of BadBehavior (2.2.9) and some other installed plugin. * That may be possible, but normally when that happens you get a different error message. The “Warning: Cannot modify header information – headers already sent by” error message is almost always either a problem with the `wp-config.php` file or some other file adding a white space. * [fisnollo](https://wordpress.org/support/users/anollo/) * (@anollo) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013157) * The link you reference says _“This could be true about some other file too, so please check the error message, as it will list the specific file name where the error occurred”_. * In my case, the error refers to the **blacklist.inc.php** file, so doesn’t that mean that’s where the error is originating from, not the config file? * Moderator [Jan Dembowski](https://wordpress.org/support/users/jdembowski/) * (@jdembowski) * Forum Moderator and Brute Squad * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013160) * > In my case, the error refers to the blacklist.inc.php file, so doesn’t that > mean that’s where the error is originating from, not the config file? * Sort of. Kinda. Ish. * I know, that’s not really helpful but I’ll explain, probably poorly. 😉 For now, consider manually rolling back to the earlier version. * This is a specific to that file error message. * ``` Warning: Invalid argument supplied for foreach() in /home/genegem/public_html/loseweightfastsystems.com/wp-content/plugins/bad-behavior/bad-behavior/blacklist.inc.php on line 176 ``` * That’s saying there is a problem with the `foreach()` in that file which is good error message ’cause it’s saying “THERE on line 176 of that file”. * This is a brain teaser error message. * ``` Warning: Cannot modify header information - headers already sent by (output started at /home/genegem/public_html/loseweightfastsystems.com/wp-content/plugins/bad-behavior/bad-behavior/blacklist.inc.php:176) in /home/genegem/public_html/loseweightfastsystems.com/wp-content/plugins/bad-behavior/bad-behavior/screener.inc.php on line 9 ``` * The reason it’s a brain teaser is that it’s telling you that _something else_ sent the headers already when processing the files `blacklist.inc.php` and `screener. inc.php` which is good but you don’t know what sent the headers already. * It could be and usually is the `wp-config.php` file. Or it could some other file in the Bad Behavior plugin that was processed already. * Since this is being reported by several people, it _might be_ the plugin (odds are good) but checking your `wp-config.php` file [as I outlined](http://wordpress.org/support/topic/plugin-bad-behavior-latest-update-broke-my-site?replies=2#post-3129787) never hurts either. * [411plumb](https://wordpress.org/support/users/411plumb/) * (@411plumb) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013172) * I’ve got the same error as everyone else. * > Warning: Invalid argument supplied for foreach() in /home/*****/public_html/ > wp-content/plugins/bad-behavior/bad-behavior/blacklist.inc.php on line 176 > Warning: Cannot modify header information – headers already sent by (output > started at /home/*****/public_html/wp-content/plugins/bad-behavior/bad-behavior/ > blacklist.inc.php:176) in /home/*****/public_html/wp-content/plugins/bad-behavior/ > bad-behavior/screener.inc.php on line 9 > Warning: session_start() [function.session-start]: Cannot send session cache > limiter – headers already sent (output started at /home/*****/public_html/wp- > content/plugins/bad-behavior/bad-behavior/blacklist.inc.php:176) in /home/*****/ > public_html/wp-content/plugins/si-contact-form/si-contact-form.php on line > 2189 * There are no white spaces in the wp-config file, the update is broken it is that simple. Deactivating the plug-in in the plug-ins page on the dashboard will remove the problem, and I have reverted to the old version for now. Will watch for a bug update before installing an update. * [zicocarioca](https://wordpress.org/support/users/zicocarioca/) * (@zicocarioca) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013173) * **It might help:** I don’t know how to explain this correctly but I’d like to tell you what I did in order to get rid of the BadBehavior 2.2.9 update bug. * After trying to fix the `cannot modify header blablabla` bug and performing some sort of [search and destroy] extra white spaces on the conflicting files (inluding the wp_config.php file) without success, I decided to delete the BadBehavior pluging via FTP and [reinstalled the 2.2.8](http://downloads.wordpress.org/plugin/bad-behavior.2.2.8.zip) version. * Later, I realised that even though the main problem was solved I was still experiencing this silly nightmare on my dashboard since I was reading the same error as a header on every single feed… for example on: “recent drafts”, “WordPress Blog”,“ Plugins” and also on “Other WordPress News”… SO WHAT did I do? * Simple: 1) Emptied every single cache. I use W3TC. 2) Purged the cache in CloudFlare too. [If you use CloudFlare, remember to activate the reverse proxy thing on the BadBehavior settings panel] 3) And finally, since the problem seemed to persist, I also deleted the storaged cache on my own disk via the Options menu in Firefox, since it’s the web browser I was using along this process. * Now everything seems to work just fine. * Of course, I know this is not a proper fix for the 2.2.9 update bug BUT AT LEAST I’m running the BadBehavior 2.2.8 plugin again. I’ll wait and see. * I hope this helps. Cheers from Barcelona! * [Jonathan UK](https://wordpress.org/support/users/jonathan-uk/) * (@jonathan-uk) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013174) * Come on Jan, aren’t you’re ready to concede yet? 😉 * I’m no coder, but surely this is a buggy upgrade? When I applied the upgrade, my site broke. When I deactivated it (and later, when I deleted it and restored the 2.2.8 version), my site worked again. * Thank you for the link to the various versions – I didn’t know where to find it, but am now very pleased to have been able to restore a working version. * [pbeckley](https://wordpress.org/support/users/pbeckley/) * (@pbeckley) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013200) * 2.2.9 contains a typo in the blacklist.inc.php * the last foreach loop says * `foreach ($bb2_spambots_utl as $spambot)` * it should say * `foreach ($bb2_spambots_url as $spambot)` * I know not everyone feels comfortable changing things like this themselves, but you can do it from the plugin editor inside WordPress if you’re adventurous enough. * [fisnollo](https://wordpress.org/support/users/anollo/) * (@anollo) * [13 years, 9 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/#post-3013219) * Thanks pbeckley, that fix worked for me. Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/page/2/?output_format=md) [→](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/page/2/?output_format=md) The topic ‘Bad Behavior Plugin Warning Message’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/bad-behavior.svg) * [Bad Behavior](https://wordpress.org/plugins/bad-behavior/) * [Support Threads](https://wordpress.org/support/plugin/bad-behavior/) * [Active Topics](https://wordpress.org/support/plugin/bad-behavior/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/bad-behavior/unresolved/) * [Reviews](https://wordpress.org/support/plugin/bad-behavior/reviews/) * 18 replies * 8 participants * Last reply from: [error](https://wordpress.org/support/users/error/) * Last activity: [13 years, 7 months ago](https://wordpress.org/support/topic/bad-behavior-plugin-warning-message/page/2/#post-3013423) * Status: resolved