Title: PHP Warning:  Cannot modify header information – headers already sent
Last modified: September 1, 2016

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# PHP Warning: Cannot modify header information – headers already sent

 *  Resolved [Ashok](https://wordpress.org/support/users/bappidgreat/)
 * (@bappidgreat)
 * [10 years ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-headers-already-sent/)
 * Hi
 * There is a whitespace in /widget-context/debug/debug-bar.php line no 1, that 
   generates a warning when a post is saved and debug mode is on. Could you please
   remove that whitespace in next update?
 *     ```
       <?php
   
       class Debug_Widget_Context extends Debug_Bar_Panel {
       ```
   
 * should be
 *     ```
       <?php
   
       class Debug_Widget_Context extends Debug_Bar_Panel {
       ```
   
 * Thanks
 * [https://wordpress.org/plugins/widget-context/](https://wordpress.org/plugins/widget-context/)

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

 *  Plugin Author [Kaspars](https://wordpress.org/support/users/kasparsd/)
 * (@kasparsd)
 * [9 years, 12 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-headers-already-sent/#post-7466512)
 * Sure, thank you for letting me know.
 *  Plugin Author [Kaspars](https://wordpress.org/support/users/kasparsd/)
 * (@kasparsd)
 * [9 years, 12 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-headers-already-sent/#post-7466596)
 * This has been fixed in the latest version of the plugin.

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

The topic ‘PHP Warning: Cannot modify header information – headers already sent’
is closed to new replies.

 * ![](https://ps.w.org/widget-context/assets/icon-256x256.png?rev=1919865)
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 * 2 replies
 * 2 participants
 * Last reply from: [Kaspars](https://wordpress.org/support/users/kasparsd/)
 * Last activity: [9 years, 12 months ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-headers-already-sent/#post-7466596)
 * Status: resolved