On Sat, 2007-03-24 at 01:54 +0100, Tijnema ! wrote:
> On 3/24/07, Richard Lynch <ceo@xxxxxxxxx> wrote:
> > On Thu, March 22, 2007 5:14 pm, Tijnema ! wrote:
> > > On 3/22/07, Jon Anderson <janderson@xxxxxxxxxxxxxxxxxx> wrote:
> > >> Your test isn't exactly fair. The for loop has no statements in it,
> > >> and
> > >> the while loop has one. Your tests show while as approx 7% faster,
> > >> while
> > >> a modified test shows an approximate 30% speed improvement:
> > >>
> > >> Do this:
> > >>
> > >> for ($i=0;$i<10000000;$i++) {}
> > >>
> > >> v.s.:
> > >>
> > >> $i = 0;
> > >> while ($i++ < 10000000) {}
> > >>
> > >> The above while loop is 30% faster than the for. A little teaking on
> > >> the
> > >> for loop, it's faster still:
> >
> > Folks:
> >
> > How often do you use a loop of any kind in PHP with enough iterations
> > that this is even significant?
> >
> > Write the code that makes sense.
> >
> > Optimize the biggest bottleneck until performance is acceptable.
It's not optimization if you just happen to write optimal code out of
habit. It's already done.
Cheers,
Rob.
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