php mod % 3

[eluser]John_Betong[/eluser]
Hi Pygon,

Many thanks for your code I learnt how easy it was to use the BenchMark Class, This will no doubt come in handy in the future.

I would not have imagined Modulos to be much faster and think it was the repeated if test to see if $i==0 was the time grabber.

Empty() just tests for Null, 0 or an empty string whereas strnlen() should test and cater for string lengths, etc. Maybe also allocate memory for the counter.

A long time ago I read why $i++ is faster than $i+=1 and think the reason is something to do with just shifting a bit in the byte whereas the +1 must use the addition routine. I have just remembered the good old days and having to write a multiplication routine using Z80 Assembler - no mean task!

Aren't computers fun

Cheers,

John_Betong