http://www.php.net/manual/en/ref.outcontrol.php
If you want to use output buffering you must use the ob_* family of
functions.
In any script where you want it used you _must_ use it explicitly, or so do
in an included file. Unless you can change the php.ini, there is no way to
force all pages to use output buffering. I don't reccommend you do such a
thing anyway.
If you aren't using output compression all it does is allow bad programming
practices. One exception is for hosting companies that want to force ads to
be displayed on the page with the auto_prepend type settings.
Output buffering should only be used if you have a specific reason for doing
so. Kind of like all PHP functions :)
It doesn't cost much in performance except when a script pumps out a very
large amount of data. If you want to print a 10mb text file to the browser
it is a considerably _BAD_ idea to force PHP to buffer that all up into one
chunk before puking it out.
But, enter the gz_handler functions. If you want to compress your output,
then you have a reason for using output buffering. The cost in performance
varies widely, but if your server is already under a considerable load you
probably shouldn't use it.
But it's very cool to use if you have the extra processor power, but wait
for 4.0.5 to do it. Many people complain about memory leaks and sub-standard
output buffering functions. It's supposed to all be fixed in the new
version, so feel free to play around with it :)
Still, it's better to be able to set it only in the places you want it run
rather than making all output use it.
--
Plutarck
Should be working on something...
...but forgot what it was.
"Christian Dechery" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> as I saw on the manual output_buffering cannot be changed at runtime... so
> there is NO WAY? If I want output_buffering I'll have to do it on all my
pages?
>
> and does it really cost that much in performance? is it worthed?
> ____________________________
> . Christian Dechery (lemming)
> . http://www.tanamesa.com.br
> . Gaita-L Owner / Web Developer
>
>
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