[wp-trac] [WordPress Trac] #40954: Create Category within posts screen error
WordPress Trac
noreply at wordpress.org
Wed Nov 6 18:12:14 UTC 2024
#40954: Create Category within posts screen error
-------------------------------+-------------------------
Reporter: cfastenrath | Owner: (none)
Type: defect (bug) | Status: closed
Priority: normal | Milestone:
Component: Posts, Post Types | Version: 4.8
Severity: normal | Resolution: invalid
Keywords: close | Focuses: javascript
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Comment (by hmazadev000):
Replying to [comment:5 hmazadev000]:
> Replying to [comment:4 hmazadev000]:
> > Replying to [comment:3 hmazadev000]:
> > > Replying to [comment:1 cfastenrath]:
> > > > There were additional lines after the closing php tag in an
uploaded file in the plugin folder.
> > > > Therefore headers were already sent which results in this error!.
> > > >
> > > This error happens when there are unintended characters or lines
after the closing ?> PHP tag in the file. Removing any extra lines or
spaces after the closing tag should resolve the issue.
> > In PHP files, it’s often recommended to avoid the closing ?> tag
entirely, especially for files that contain only PHP code. This helps
prevent accidental output of whitespace or new lines, which can cause the
"headers already sent" error.
> Sometimes, output functions like echo or print within the file, if
executed before setting headers, can also trigger this error. Make sure
there’s no unintended output before any headers are sent.
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Ticket URL: <https://core.trac.wordpress.org/ticket/40954#comment:6>
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