Posted by Gazornenplat on 11/15/05 22:20

The point is that headers are sent the moment ANY page output is, er,
output. This includes spaces, newlines etc.

So if ANYTHING printable has been output, then the headers have been
sent. That is what headers are for.

If you get this error, then something has been sent to the browser and
you need to find out where. Any tag, anything at all, causes headers to
be sent and then, of course, you can't add to the headers - they have
already gone.

This IS fairly basic, and IS a common mistake, but can be a bit hard to
comprehend if you don't understand how everything works.

Ian

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