It's done at the end of a function, or at any other time, when the variable
is no longer in scope.
You really only need this on a large, long-running script or where memory is
For web-sites, that's quite rare.
For a shell script, it might make sense.
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----- Original Message -----
From: Tobias Strauß <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 07, 2001 3:54 AM
Subject: use of mysql_free_result and unset
> When do I have to use mysql_free_result($res). Is it good to use it with
> every query or only if the result is very big (what's the size of the
> I shoud use mysql_free_result?).
> What's about the use of unset($var). Is this good to save RAM to make my
> script run faster?
> Do I have to do this also when I'm at the end of a function or is it
> automatically done by leaving this function if it's not set global?
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