Re^2: why need my in a foreach loop?

[ikegami]

in reply to Re: why need my in a foreach loop?
in thread why need my in a foreach loop?

The OP points out that there's no real difference between for $lex (...) and for my $lex (...). The "my" is just useless noise. As such, the declaration could be implicit.

It's reasonable, but it's not true because foreach loops don't just work with lexicals.

[szabgab]

The foreach loop always works with an alias. IMHO the variable is never connected to anything outside the for loop so the values never "leak" out of the loop. If I am mistaken, please give an example when that variable is connected to something else as well.

[ikegami]

I've already showed when it makes a difference.

[szabgab]

Oh, apparently I did not read your example in detail. Interesting example. Now I understand how the "my" makes a difference there. Thanks.

However I'd be interested to know in what case would you really want to write such code?