Troubleshooting
What does "page headers already sent" mean?
Scenario:
"I've just installed Nucleus/a plugin/upgraded/done something to my Nucleus files and Nucleus is giving me this error:
Warning: Cannot add header information - headers already sent by (output started at /home/www/path/to/certain/nucleus/file.php:LINENUMBER) in /home/www/path/to/another/nucleus/php/file.php on line LINENUMBER
What is this all about?"
Solution:
Open up the file Nucleus is talking about and check that there is no whitespace before the <? at the very beginning of the file and after the ?> parts at the end of the file. So if your file looks like this:
the white space is in the circled part just before the <? part. Just delete it so that your file looks like this:
Original forum thread (too many to count - here's the latest one):
http://forum.nucleuscms.org/viewtopic.php?t=7389
Further reading:
http://wakka.xiffy.nl/headerssenterror
Total votes: 6 - Rating: 9.83