er ... tedd, whatever, usually ++i is faster in almost every language, and even 
C developers could use these kind of micro optimizations.

Speed, even in this SuperCPU era, is still relevant, we would not need 
benchmark to compare programming languages for each purpose.

Of course in a crappy application, the usage of ++i rather than i++ won't make 
any difference, but specially for that kind of for loop where there is 
absolutely no harm or side-effect using ++i rather than i++ ... if ++i could be 
0.0001% nobody have a valid reason to avoid it.

Put in this way: I need to do the same thing, one could be better ... why on 
earth should I use the other way?

I just develop applications, where I can micro-optimize, I do it ... I have 
never had speed problems, but maybe I am just lucky.


> Date: Tue, 6 Oct 2009 12:15:54 -0400
> To:
> From:
> Subject: RE: [PHP] Whacky increment/assignment logic with $foo++ vs ++$foo
> At 3:56 PM +0200 10/6/09, Andrea Giammarchi wrote:
> >  > Does these behaves exactly?
> >>  for($i=0; $i<10; ++$i)
> >>  for($i=0; $i<10; $i++)
> >
> >different benchmarks showed ++$i is usually faster than $i++
> "Faster" is a relative term that is becoming more meaningless each year.
> Considering that "speed" is increasing and "memory" prices are 
> dropping exponentially, both of those are becoming less and less 
> important in design considerations (my opinion).
> The speeds of the Crays of yesteryear we are now holding in our hands 
> as cell phones. The memory we are buying today is literally fractions 
> of a cent of the tens of thousands of dollars we spent some 20 years 
> ago.
> I venture to claim the time it took me to write this email (and for 
> you to read it) was longer than the total time saved between using 
> ++$i vs $i++ for all the php scripts in the world over the remaining 
> life span of PHP.
> Interesting "food for thought", huh?
> Cheers,
> tedd
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