To satisfy the first condition (exists $hoa{$input}) $input has to be any of arraya, arrayb, arrayc. To satisfy the second condition, $input has to be equal to whatever @{$hoa{arraya}} stringifies to, which is probably 4 (because it's an array in scalar context, giving you the number of items in the array).

Since no string is both equal to array$something and to 4 at once, you'll never get output from that script.

In reply to Re^2: specific array in hash of arrays by moritz
in thread specific array in hash of arrays by kwn

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