Title: Cannot Modify Header Information PHP Error
Last modified: August 19, 2016

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# Cannot Modify Header Information PHP Error

 *  Resolved [g](https://wordpress.org/support/users/gmd8/)
 * (@gmd8)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/cannot-modify-header-information-php-error/)
 * I’m making a custom theme for WP and whenever I visit my site by adding index.
   php to the URL (website.com/wp/index.php), it gives me this error:
 * > Warning: Cannot modify header information – headers already sent by (output
   > started at */wp/wp-content/themes/grantwp/functions.php:62) in */wp/wp-includes/
   > pluggable.php on line 868
 * However when I just visit the site normally (website.com/wp) and don’t add the
   index.php, everything works fine. Either way though, wp-admin is also broken.
 * This is a fresh install of WP with no active plugins.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [tivon](https://wordpress.org/support/users/tivon/)
 * (@tivon)
 * [16 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-php-error/#post-1486211)
 * I am having this same EXACT issue, down to the pluggable.php on line 868 part.
   Searching for how to resolve.
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [16 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-php-error/#post-1486212)
 * This should help:
 * [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 2 replies - 1 through 2 (of 2 total)

The topic ‘Cannot Modify Header Information PHP Error’ is closed to new replies.

## Tags

 * [header information](https://wordpress.org/support/topic-tag/header-information/)
 * [Themes](https://wordpress.org/support/topic-tag/themes/)

 * 2 replies
 * 3 participants
 * Last reply from: [James Huff](https://wordpress.org/support/users/macmanx/)
 * Last activity: [16 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-php-error/#post-1486212)
 * Status: resolved

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