WordPress Error: Cannot Modify Header Information

WordPress Error: Cannot Modify Header Information

If you are using WordPress website then it is necessary for you to know about this “WordPress Error: Cannot Modify Header Information“.This error is also known also as “Pluggable.php File Errors“.

Many of the WordPress website users have faced or are facing this type of such error day by day. When users see this message on their website, they get panic and want to resolve this error to get rid of it.

So, users don’t worry about this problem. If you wish to resolve this kind of error you just have to read this complete article. You have also other option of getting help via our WordPress support phone number +1 888 614 0555.

When and why do you see pluggable.php file errors?

You may get the .php error, sometimes when you want to add a code snippet to your website or you want to activate a new plugin. Because WordPress only allow plugins and users to override the certain core functions. The pluggable.php file contains those functions which override the core functions.

Pluggable.php file error occurs when a plugin or a WordPress custom code snippet fails to correctly handle one of these functions. Then you will see a message like this:

  • Warning: Cannot modify header information – headers already sent by (output started at /home/username/demosite/wp-content/themes/mytheme/functions.php:1032) in /home/username/demosite/wp-includes/pluggable.php on line 1179

Pluggable.php File Errors

Sometimes, some other errors still appear in the admin area while you working on the other section of your WordPress website:

Pluggable.php File Errors

 

How to solve pluggable.php file errors in WordPress?

Before doing any changes, we recomend users not to make any changes to pluggable.php file even you got the error message pointing to that error because the pluggable.php file is a core file of WordPress.

The error will appear like this:

  • Warning: Cannot modify header information – headers already sent by (output started at /home/username/demosite/wp-content/themes/mytheme/functions.php:1032) in /home/username/demosite/wp-includes/pluggable.php on line 1179

To fix this WordPress error, you just only need to look at the first section of the displayed errors. This error always resides in the first section of the displayed error. Here the error is in the theme’s function.php at line 1032.

You just need to edit the theme’s function.php file to resolve this error.

  • Open theme’s function.php file on your website.
  • Next step is to change or remove the code which is causing this pluggable.php file error.
  • Now you just click on the update option to keep changes. So, at last, your pluggable .php error is fixed.

If you are still getting this pluggable.php error on your site, then check PHP file. When there is an extra space after closing PHP ?> tag, this error will arise. So, simply remove that space and update to fix the pluggable.php file error.

To do this only look at if there is not any extra space is inserted after closing the PHP >tag. Sometimes, this small space becomes the reason of this error. So, to fix this error you just only need to remove this error.

Congratulations, now your issue related to “pluggable .php file error” has been successfully removed.

Still unable to resolve WordPress Error: Cannot Modify Header Information? Talk to our WordPress support team to get instant service. Dial +1 888 614 0555 now.

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