Yes it's possible with package variables but bad practice because if you can't control the keys how do you avoid naming conflicts?

It would be better to choose a very short hash name.

update
> create variables (array or scalar) only for those hash keys that are not empty

this is a very puzzling request, because how do you write code for variables which may or may not exist?

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

In reply to Re: How to create variables for each hash key that has a value. by LanX
in thread How to create variables for each hash key that has a value. by Perl300

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