Re^4: Why does this sub grab the whole hash

[naturalsciences]

in reply to Re^3: Why does this sub grab the whole hash
in thread Why does this sub grab the whole hash

Oh man - enlightenment just hit me. Looked over my code and now I got how this poor array was filled over and over again with some quite random stuff in the different parts of my script. Really bad idea to use a subs like this with a globally defined array.

[moritz]

And that's why people always recommend to use strict; -- it complains about undeclared variables, so it forces you to think about where to put the declaration. And you only put the declaration outside the subroutine if that's your conscious choice.

[AnomalousMonk]

Really bad idea to use a subs like this with a globally defined array.

It's a really bad idea to use subs (or anything else) with a globally defined, non-constant anything unless, as moritz has written, it's your conscious decision to do so — and even then I'd think twice about it.