Title: Cannot save posts in 3.0 – get error – Warning: Cannot modify header information
Last modified: August 19, 2016

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# Cannot save posts in 3.0 – get error – Warning: Cannot modify header information

 *  Resolved [titoburritotaco](https://wordpress.org/support/users/titoburritotaco/)
 * (@titoburritotaco)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/)
 * Hey guys…i need help big time..
 * In WordPress 3.0 when i save a post i get this Error:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/gototenn/public_html/wp-config.php:83) in **/home/gototenn/public_html/
   wp-includes/pluggable.php** on line **890**
 * I looked in the pluggable.php file and look @ line 890:
    header(“Location: $location”,
   true, $status);
 * There is a commented line in there that says: // This causes problems on IIS 
   and some FastCGI setups
 * Should i set this to false?

Viewing 15 replies - 1 through 15 (of 36 total)

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 *  Thread Starter [titoburritotaco](https://wordpress.org/support/users/titoburritotaco/)
 * (@titoburritotaco)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1539831)
 * *Follow up…i looked in my wp-config.php file, and there is nothing on line 83…
   so im not sure how WordPress thinks the output started on the wp-config.php file
   already.
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1539837)
 * The problem is unexpected whitespace (either a space or an entire line) on line
   83 of the `wp-config.php` file. See this for more info:
 * [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)
 *  Thread Starter [titoburritotaco](https://wordpress.org/support/users/titoburritotaco/)
 * (@titoburritotaco)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1539839)
 * *PHEWW…. that was it… thank you Macmanx for the quick response!
 * I was playing with the MU feature and must have left extra white space when i
   removed the “MU enable” option.
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1539843)
 * You’re welcome!
 *  [isaak-wells](https://wordpress.org/support/users/isaak-wells/)
 * (@isaak-wells)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540076)
 * I got a closely resembled message
 * `Warning: Cannot modify header information - headers already sent by (output 
   started at /nfs/c03/h04/mnt/49675/domains/consolealliance.com/html/wp-login.php:
   60) in /nfs/c03/h04/mnt/49675/domains/consolealliance.com/html/wp-includes/pluggable.
   php on line 890`
 * I check for whitespace and I can’t seem to find any. When you load the page which
   is the registration page at the bottom it loads this error but if you refresh
   it fixed it and if you refresh again it shows the error in that pattern
    Can 
   anyone help me?
 *  [hdhenry](https://wordpress.org/support/users/hdhenry/)
 * (@hdhenry)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540194)
 * I have the same white screen problem when updating from the dashboard:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/hdhenryc/public_html/wp-content/themes/GamesHit/functions.php:314) in/
   home/hdhenryc/public_html/wp-includes/**pluggable.php** **on line 890**
 * no spaces between ?>, just downloaded wordpress3 and wp3 compatable theme >:?
 *  [dashaluna](https://wordpress.org/support/users/dashaluna/)
 * (@dashaluna)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540211)
 * I just had the same error. [@titoburritotaco](https://wordpress.org/support/users/titoburritotaco/)
   Thanks for asking and [@james](https://wordpress.org/support/users/james/) (MacManX)
   for the link.
    In my case I had an empty line before my <?php opening tag in 
   the functions.php
 *  [lizpike](https://wordpress.org/support/users/lizpike/)
 * (@lizpike)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540250)
 * I got the same msg on a client site. Discovered 3 missing php closing tags in
   the functions.php, wp-config.php, and pluggable.php files.
 *  [MrEMan](https://wordpress.org/support/users/mreman/)
 * (@mreman)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540251)
 * May not be related but I have been unable to post since updating from 2.x.x to
   3.0.1.
 * There was an extra field in the wp_post table called post_expire, once I deleted
   that field it worked again.
 * I also have the missing closing tags but that isn’t the problem.
 * Regards
 *  [kieshute](https://wordpress.org/support/users/kieshute/)
 * (@kieshute)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540252)
 * I had error:
    Warning: Cannot modify header information – headers already sent
   by… …/public_html/wp-includes/pluggable.php on line 890
 * I edited pluggable.php file
    in 890 line: header(“Location: $location”, true,
   $status); deleted spaces like this: header(“Location: $location”,true,$status);
 * And no more errors.
    P.S.: Sorry for my bad english
 *  [chechogr](https://wordpress.org/support/users/chechogr/)
 * (@chechogr)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540260)
 * I opened the file pluggable.php and edited with note pad. I did all what you 
   state on post [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)
   but the error remmains.
    Can someone send me the file corrected? Can someone 
   suggest how to fix this issue
 *  [chechogr](https://wordpress.org/support/users/chechogr/)
 * (@chechogr)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540261)
 * btw, the error I get when I go to [http://www.mydomain.com/wp-admin](http://www.mydomain.com/wp-admin)
   is Warning: Cannot modify header information – headers already sent by (output
   started at /home1/ventalot/public_html/wp-config.php:1) in /home1/ventalot/public_html/
   wp-includes/pluggable.php on line 890
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540264)
 * You have unexpected whitespace (either a space or an entire line) on line 1 of
   the `wp-config.php` file. See [this guide](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F)
   for more info.
 * Alternatively, replacing the file with one from a fresh download may resolve 
   the issue.
 *  [rhowardgriffin](https://wordpress.org/support/users/rhowardgriffin/)
 * (@rhowardgriffin)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540268)
 * I have the same issue:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/thelang2/public_html/streetartlondon.co.uk/wp-content/themes/autofocuspro/
   thematic-functions.php:1) in /home/thelang2/public_html/streetartlondon.co.uk/
   wp-includes/pluggable.php on line 890
 * and
 * Warning: session_start() [function.session-start]: Cannot send session cache 
   limiter – headers already sent (output started at /home/thelang2/public_html/
   streetartlondon.co.uk/wp-content/themes/autofocuspro/thematic-functions.php:1)
   in /home/thelang2/public_html/streetartlondon.co.uk/wp-content/plugins/simple-
   twitter-connect/stc.php on line 33
 * Tried the above fix to no avail. Any ideas?
 *  [rhowardgriffin](https://wordpress.org/support/users/rhowardgriffin/)
 * (@rhowardgriffin)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/#post-1540269)
 * Now sorted!
 * Just dropped in a fresh download.

Viewing 15 replies - 1 through 15 (of 36 total)

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The topic ‘Cannot save posts in 3.0 – get error – Warning: Cannot modify header 
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 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 36 replies
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 * Last activity: [15 years, 4 months ago](https://wordpress.org/support/topic/cannot-save-posts-in-30-get-error-warning-cannot-modify-header-information/page/3/#post-1540305)
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