On Fri, 2004-10-29 at 19:31, Derick Rethans wrote:
> On Fri, 29 Oct 2004, Robert Cummings wrote:
>
> > On Fri, 2004-10-29 at 19:04, Derick Rethans wrote:
> >
> > > Yeah, [] is for arrays, {} for string indexes though I still think this
> > > should not be in, one can use substring for this. Something like a
> > > "negative string index" is IMO too much magic.
> >
> > Just as much magic as the negative start in substr() function. It would
> > be consistent with substr() precedent of negative indexes counting
> > backward from end of string.
>
> But substr() is a *function*, that's totally different from a language
> construct which should be a generic tool, not a specific one like Ilia
> is proposing here.
>
> > Also, everyone knows functions run slower than operators :)
> *cough*bullshit argument*cough*
Well for the amount of times you need to traverse backward in a string
it probably is a crap argument :) However it does indeed stand that
operators are processed faster than functions I would wager due to the
overhead of setting up parameters etc. Contrast is_null( $x ) versus $x
=== null, there's about 17% difference in speed. Similarly (0.0 + $x)
takes almost half the time of floatval( $x ).
Cheers,
Rob.
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