Answer: How do I make a hash of hashes? contributed by blackfrier You can declare it like: %hash = ( arms => { biggest => 'mine', smallest => 'yours' }, feet => { biggest => 'right', smallest => 'left' }, legs => { biggest => 'theirs', smallest => 'them', muscular => 'yes' } ); [download]

Answer: How do I make a hash of hashes? contributed by chromatic You can also add a hash by doing something like this: $hash{toes} = { biggest => 'hairy troll', smallest => 'toddler', }; [download] (Note that the {} make a reference to an anonymous hash. See perlman:perldsc for more gritty details.)

Answer: How do I make a hash of hashes? contributed by Doraemon This might interest you: $other_hash{key} = ''; $hash{other} = \%other_hash; $hash{other}->{key} = '1'; # ok $tmp = $hash{other}; $$tmp{key} = '2'; # use it like this # $$hash{other}{key} = '2'; # but not like this ${$hash{other}}{key} = '3'; # this is ok $hash{other}{key} = '3'; # this too, -> unneeded after { +} [download]

Answer: How do I make a hash of hashes? contributed by da w00t If it was declared as a named hash of multiple dimensions, you may access it like $hash{foo}->{bar}->{beer}="free";, or like this: $hash{foo}{bar}{beer}="free"; if you prefer to drop the arrows. If it's an anonymous hash held in a hash reference, you access it like this: $r_hash->{foo}{bar}{beer}= "free"; [download]

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