> yes, you must use unset() to remove a variable, otherwise it will stay
> for the duration of the script.
Don't worry about memory management if you're going to use PHP. The
point of using a high level language like PHP is you can just ignore
it. Let's say you decided to:
if ($temp)
{ /* something */ }
unset $temp; // save a couple bytes of memory
And you decided to reuse $temp a few weeks later:
if ($temp) // never will execute because you forgot you unset($temp);
{ /* something */ }
So unless you're dealing with an extreme scenario (i.e. a number of very
large mySQL queries), you probably don't need to worry.
-Dan
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