[nycphp-talk] Copy-on-write
Analysis & Solutions
danielc at analysisandsolutions.com
Fri Oct 31 14:00:54 EST 2003
Hi George:
On Thu, Oct 30, 2003 at 09:15:30PM -0500, George Webb wrote:
>
> Does this also hold true for values *returned* from functions?
I'm going to venture a guess as to what's going on. I hope someone with
more knowledge on the subject will corroborate or correct what I'm about
to say...
The idea of returning from functions is different than sending data to
functions.
Most functions return static values. You can put that value into a
variable. If you alter that variable, you're altering THAT value. I
don't think PHP's going to be making a copy because there's no need to
remember the old value returned by the function.
Pardon me while I skip over explaining the whole "return by reference"
issue.
See you,
--Dan
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