On Thu, 2007-02-08 at 18:36 +0100, Youri LACAN-BARTLEY wrote:
> Tim wrote:
> > First thank you all for your input on "all-in-one" classes.
> >
> > Reading the php manual on boolean types and casts, and came accros the
> > following:
> >
> > <quote>
> > When converting to boolean, the following values are considered FALSE:
> >
> > ...
> >
> > an array with zero elements
> >
> > ...
> > </quote>
> >
> > So here I am sitting and wondering if after all this while doing:
> >
> > $arr = array();
> > If (count($arr) == 0) {}
> >
> > Shouldn't have been simply doing:
> >
> > $arr = array();
> > If (!arr) {}
>
> I'm afraid I can't bring in any insight, I just wanted to mention that's
> a nice "feature" you've brought up. The only issue I can see popping up
> is that !$arr doesn't explicitly indicate that you are checking for an
> empty array ... Other than that, I guess it's yet another way to get of
> a few bytes worth of code.
It simplifies code and also speeds it up. Instead of incurring the cost
of a function call overhead the time is instead reduced to the
evaluation of an opcode.
Cheers,
Rob.
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