Another efficiency possibility would be to use a hash and exists (or treat it as a set where keys for members get set to 1). Precaffeine at the moment (so I believe this was the intent but not sure) but for what the op was trying setup a %valid_selections and then loop over the values passed setting $selected{$item} = 1 if exists $valid_selection{$item} then @selection = keys %selected.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^2: Question about loops and breaking out of them properly by Fletch
in thread Question about loops and breaking out of them properly by unmatched

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