Title: Cannot modify header information
Last modified: August 20, 2016

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# Cannot modify header information

 *  [alexwrld](https://wordpress.org/support/users/alexwrld/)
 * (@alexwrld)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-43/)
 * **I’ve given up on the following error 🙁
    Could anybody tell me what this error
   is all about and how to fix it
   .
 * **Warning:** Cannot modify header information – headers already sent by (output
   started at /home1/seoproin/public_html/successstoriesco/wp-content/themes/Success/
   functions.php:11) in/home1/seoproin/public_html/successstoriesco/wp-includes/
   class-wp-ajax-response.php on line129
 * **Warning: **array_keys() [function.array-keys]: The first argument should be
   an array in/home1/seoproin/public_html/successstoriesco/wp-admin/admin-ajax.php
   on line 847
 * **Warning:** array_pop() [function.array-pop]: The argument should be an array
   in/home1/seoproin/public_html/successstoriesco/wp-admin/admin-ajax.php on line
   847
    Please provide a custom field name.

Viewing 1 replies (of 1 total)

 *  Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/)
 * (@keesiemeijer)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-43/#post-2211429)
 * Seems your theme’s functions.php is causing the error.
    [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)

Viewing 1 replies (of 1 total)

The topic ‘Cannot modify header information’ is closed to new replies.

## Tags

 * [header error](https://wordpress.org/support/topic-tag/header-error/)
 * [php-error](https://wordpress.org/support/topic-tag/php-error/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/)
 * Last activity: [14 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-43/#post-2211429)
 * Status: not resolved

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