Is that code an example or is that the specific instance you're
trying to replace? Because if the latter, you can just use grep
my @array = grep $_ != 5, 0..9;
Actually this isn't exactly the same, because your code has a bug,
assuming that your goal is to weed out elements equal to 5.
(That's the goal, right? If not, never mind.)
The bug is that you're altering the array while progressing through
the loop, which means that you skip certain elements. Try your
code on this array:
my @array = qw(0 1 2 3 4 5 5 6 7 8 9 );
Only the first 5 will be removed, because after splice
the first 5, the index of the 5 following it has just decreased by
1. But the loop counter increments, and you end up skipping
the 5 following it.
As for your general question, which seems to be, is there a way
to get rid of reliance on loop counters when iterating through
arrays. And that's a good question, and I don't really think there
is a good way. There isn't a magic variable for "index into an
array" when in a foreach loop. Although perhaps there should
be; Dominus has a post about this.
All the same, though, you should probably refrain from altering
an array while iterating over it.