PHP for loop vs. foreach with range [closed]

Answer 1

If it's that critical,

for($i = 0; $i < 1000; ++$i) {}

is faster than

for($i = 0; $i < 1000; $i++) {}

but you'll not really notice much difference over just 1000 iterations

Is it really so essential to micro-optimize.... and if so, why can't you simply set up some test runs to compare the different options yourself