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PHP

Dean Kennedy
Dean Kennedy
4,491 Points
Posted by Dean Kennedy
Dean Kennedy
4,491 Points

Cannot modify header information on deployment server.

I have deployed an application to a web server & am getting errors I don't get on my development environment. The error is: Warning: Cannot modify header information - headers already sent by (output started at /sl.ls5cpf.co.za/includes/functions.php:6) in /sl.ls5cpf.co.za/login.php on line 12. Any ideas on how to fix this?

1 Answer

Joel Bardsley
Joel Bardsley
31,249 Points
Joel Bardsley
Joel Bardsley
31,249 Points

Usually this warning appears because of a whitespace issue - check those files for any spaces/empty lines before your opening <?php tags and after any closing ?> tags and remove if necessary. Your deployment server might have different error reporting settings applied, which I would speculate is why you're not seeing the same message in your dev environment.

If that doesn't fix the issue, please post the relevant lines of code from those two files if possible.

Dean Kennedy
Dean Kennedy
4,491 Points
Dean Kennedy
Dean Kennedy
4,491 Points

Thanks Joel, was white space on the functions file