Cannot modify header information

  • Levi071

    (@levi071)


    9 years, 8 months ago

    For Some Reason On A Jigoshop Page It Won’t Work And Just Comes Up With:

    Warning: Cannot modify header information – headers already sent by (output started at C:\xampp\htdocs\Clients\Richard Johnson\Paintball\wp-includes\theme.php:1338) in C:\xampp\htdocs\Clients\Richard Johnson\Paintball\wp-includes\pluggable.php on line 1121

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  • RossMitchell

    (@rossmitchell)

    9 years, 7 months ago

    This “Headers already sent” error means that output from the php code has already started, and hence it is too late to change cookies. This most often because of a bug in your theme or one of your plugins, even something as simple as a change of a php file from ending:
    ?>(EOF)
    to

    ?>
(EOF)

    is enough to do this. It will have output an end of line !

    So this is what you do:
    First backup your theme and plugins files.
    Reload a clean copy of your theme files.
    Turn off all your plugins, or reload your plugins.

    Hopefully you will now have identify where the problem started.

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