Uh, I was thinking about pushing both key and values, but yes, your solution is a viable one using push.
All actual examples of how I do it are removed so as not to give the OP any silly ideas to cut&paste...
Given the fact that the OP cannot use push, an example would be safe here :)

Flavio
perl -ple'$_=reverse' <<<ti.xittelop@oivalf

Don't fool yourself.

In reply to Re^3: Filling a hash by polettix
in thread Filling a hash by Anonymous Monk

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