The items in your array are in insertion order, so what remains is each individual hash. In your example above, you have a list with one element: a standard hashref. Since you can't "tie" an anonymous reference like this, you would need to use the object-oriented abilities of Tie::IxHash instead: 
use Tie::IxHash;

push @data, Tie::IxHash->new( yo => mama, bliz => at );
push @data, Tie::IxHash->new( one => two, three => four);

print join(", ", keys %{$data[1]});  # one, three

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You can also create separate hashes, tied to Tie::IxHash (per the man page) and push references to each of those tied variables onto @data.

In reply to Re: How do I tie an array of hashes? by Fastolfe
in thread How do I tie an array of hashes? by Anonymous Monk

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