im getting this

Warning: Cannot modify header information – headers already sent by (output started at /homepages/20/d159566430/htdocs/jericoinfo/wp-includes/widgets.php:2) in /homepages/20/d159566430/htdocs/jericoinfo/wp-content/plugins/BAStats/BAStats_logger.php on line 99

and of course i cant even log in or anything. the later part changed due to the page but the widgets.php seems to be the sourse of all the trouble. i looked through the file and there didnt seem to be any problems that i can see.. any ideas?

please help

http://jericosystems.info

just letting you know i fixed it so you didnt waste your time trying to help. feel free to stop by though.

Thanks! I was having the same problem. Somehow, I ended up with spaces after “?>”, but getting rid of them fixed it!

Rock on! “chances are you have messed up your wp-config.php leaving some unnecessary spaces inside.”

Exactly!

Hey Hongkiat! I host my blog at Bluehost, installed wordpress and installed a theme called Demure Composure. Everytime i do anything i get a Header Error… when I log out via my blog i get this error:
Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-login.php on line 202

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-login.php on line 214

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 570

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 571

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 574

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 575

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 576

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 577

Warning: Cannot modify header information – headers already sent by (output started at /home/ibawebco/public_html/jiba/wp-content/themes/Composure/functions.php:1190) in /home/ibawebco/public_html/jiba/wp-includes/pluggable.php on line 694
What should I do!? I am totally a newb at this… thanx in advance

@danielgbr double check your header.php. See if there’s a blank newline on the top of the page. Sometimes this error creates that following warning.

it doesn’t work… :/

Thanks a lot for this! It was a great help and solved my problem.

Jane

Thank you, you solved my problem.

Hi I have the same problem as you danielgbr….I have tried many things but nothing helped…where was the problem if you were able to fix it??

I can’t believe this, I told many of my clients that I cannot sell them WP in spanish because when I change the wp-config file to put it in spanish the WP messed up.

I can’t believe this, you solved my problem, but is unbelievable that the spaces wer already there but only start messing around if I modify the file.

Thanks a lot for fixing this serious WTF

I’ll be darned. I reinstalled the wordpress twice as I was getting this error when i upgraded.

Who could’ve thought it were the space. Lol

Thanks, great post

i had the same problem but i jut apply this solution (delete some space) and it work perfectly.

i solved this problem
use this code
<?
//dont use header function in wordpress-wp_signup.php
global $domain;
global $path;
//change urlnew variable as per requirment
$urlnew = “http://”.$domain.$path.”/wp-admin/admin.php;

echo “”;
echo “location = ‘$urlnew’;”;
echo “”;
echo $urlnew;
?>
Purab Kharat

Other than wp-config.php & header.php, any other possible cause of this error? I tried to delete those spaces but still the same problem. May I have your suggestions?

I just realized that the Google Analytic had created this trouble for my blog. I used to view my blog in Firefox but no error, but I found error from Google Analytic in IE. After I deactivated the Google Analytic Plugin, then all the problems solved. Just to share with all.

thanks for letting others know. this helped me out to when i encountered the problem

just wanted to let you know this saved me quite a bit of time tonight… thks for posting!

Resolveu meu problema! Obrigado!

So simple, and yet effective. It helped me transfering my blog.

Thank you dudes, it worked..

It worked for me! Removed to blank rows at the bottom

Thanks.

Thanks Bro, worked a treat after i removed the blank spaces.

Hi,

I had a similar problem and found it was caused by a recent update to one of my plugins, removed the plugin and this fixed the error.

Andy

Thanks for the space tip. It’s been driving me nuts for hours!

:)
doesn’t work…

Thanks, it solved the problem!

Now I can start my blog. Thanks a lot!!!!!!!!!!!
You are the best
/Javier

Thanks so much, this really helped me and saved a lot of time!

You’re my hero. Thanks. It was so simple. I didn’t even see it.

Warning: Cannot modify header information in Wordpress

I encountered the same problem… but I fixed using these following methods..

http://emag.joreeldiaz.com/warning-cannot-modify-header-information-in-wordpress/

Holy Crap! All I had to do was check each file that showed up in the headers and TA DA! Problem solved. Thank you so much for posting this.

Hi,

When i am adding or deleting post in wordpres admin i am getting below error.

Warning: Cannot modify header information – headers already sent by (output started at /home/content/d/i/c/diclemen18/html/wp/wp-admin/includes/file.php:1539) in /home/content/d/i/c/diclemen18/html/wp/wp-includes/pluggable.php on line 850

Can anyone please help me.

Thanks

Ja, genau so hatte ich es auch. Aber nun ist das Problem weg :)

Wow, no friggin wayyyy. I have tried everything……. just as well as you all have im sure. And the freakin spaces were the problem. Im not sure which file, I went through a lot of em and almost cant believe that no more errors. :-) What a relief

Tnx! That solved it!

I messed up my upgrade :( Please help. I tried doing what you said here…but to no avail…I can’t login to wp-admin too :(

Warning: Cannot modify header information – headers already sent by (output started at /homepages/6/d262576222/htdocs/wp-settings.php:630) in /homepages/6/d262576222/htdocs/wp-includes/pluggable.php on line 850

i did it! :) figured out eventually…i had like 3 or 4 files that needed the editing and that was it :)

thanks again for this info:)

Thanks for posting this, unfortunately the spaces wasn’t the problem but I saw a comment here about google analytics, so I removed the plugin and it works. thanks hongkiat & beaulife!

You have saved my hide! Thanks a billion! Now, how tha heck did that happen, I will never know…

Thanks!! this helped a bunch!! the problem ended up being a plugin i was using…random image generator…not sure what was not working, just deleted it and now im up and running!

Thanks! This was exactly the problem I had, and such a sneaky error to detect!

Thanks! that was the missing info I needed

Hi, I’m having the same problem with BBPress, but theres no extra spaces in that file. Here is the errormessage:

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/backpress/class.wp-auth.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/backpress/class.wp-auth.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/backpress/class.wp-auth.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/backpress/class.wp-auth.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/backpress/class.wp-auth.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/michael/public_html/forum/bb-config.php:1) in /home/michael/public_html/forum/bb-includes/functions.bb-pluggable.php on line 232

Thank you, it was easy. It took me 3 hours to figure out untill I found your post.

Hi folks. Well after looking at the error info, it looks as if the issue is NOT my wp-config.php or wp-login.php files but my themes functions.php file. I removed spaces at the end of that one.

It makes sense as that could’ve been the only thing I might have modified and my site was “suddenly” not working.

So.. checking your theme files functions.php is also recommended.

Cheers

R o B

the error is in the file that is being said in the error first line. this is caused by extra spaces before or after the php code

check out the explaination here:

http://tech.nabtron.com/wordpress-plugin-error-warning-session_start-function-session-start-cannot-send-session-cache-limiter-headers-already-sent-output-started-at/525/

Got to say thank you, yesterday i locked down my site, and had to make small changes in the wp-config file

any way today i had this error showing,

then

found you on google, made the small change of deleting the space

and bingo my site is now up and running correctly..

http://www.guesthousepattaya.com

Thank you

Thanks a lot, I had an error after installing a new theme so I went to the file specified and there was a blank line just like you mentioned. Erased the blank line and no more problems.

This worked for me! You are awesome!

I just downloaded the newest version of Wordpress and all I did was modify wp-config.php. There were no spaces before at the end. So i added it in and made sure there were no white-spaces. However the problem still exists, any other suggestions?

Sorry my above post didnt show any code^^^

I just downloaded the newest version of Wordpress and all I did was modify wp-config.php. There were no spaces before”".However the problem still exists. My website shows up fine, I just get the error when i am at the wp-login.php file

Any any other suggestions?

Thanks – VERY HELPFUL!

Thanks SO much for this quick fix!!! Saved me so much time!

güzel paylaşım

Thanks, this really helped me out!

Thanks for posting this! You saved me after countless hours… :)

Top tip and solved the problem. Thanks

Hey, nice article and useful comments. None of the comments helped me though. I finally found my solution buried in one line of the wordpress troubleshooting guide. “Also check the encoding of the file. If the file is encoded as UTF-8 with BOM, the BOM is seen as a character which starts the output.” (from: http://bit.ly/by8n5x). I was developing a Chinese localisation, and had inadvertently enabled the BOM in the file editor I was using. Lesson, check your php file encoding and if in doubt set it to ANSI and see if that fixes your problem.

Thanks! Fixed my problem!

Thank you for this post. I just created my first plugin and widget, and I was receiving a similar error with headers. I removed all the unnecesary spaces in the code and now it works.

Thanks for solution, many problem solved, my http://domain.com and http://www.domain.com/wp-admin have same error, i solved using removing space after ?>

earlier my site was hacked by ftp password compromise through ftp my hosting provider remove infected script but space after ?> was left, i solved this

thanks

Thanks – you are still helping people over two years later!

hi,

i’m stuck with this message…

Warning: Cannot modify header information – headers already sent by (output started at /mounted-storage/home95b/sub003/sc1084932-QQGK/willvandewiel.com/wp-content/plugins/google-news-widget/google-news-widget.php:1) in /mounted-storage/home95b/sub003/sc1084932-QQGK/willvandewiel.com/wp-login.php on line 302

Warning: Cannot modify header information – headers already sent by (output started at /mounted-storage/home95b/sub003/sc1084932-QQGK/willvandewiel.com/wp-content/plugins/google-news-widget/google-news-widget.php:1) in /mounted-storage/home95b/sub003/sc1084932-QQGK/willvandewiel.com/wp-login.php on line 314

i don’t have ftp set up for the site and i cant log into the wordpress acc either. completely stuck and getting grief from the boyfriend please help!!!

Thanks!