I have an arrayref of hashrefs. One of the hashrefs is itself an arrayref, ie:

$page_graphic->[$i]->{array} = @array;
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Nope. Already off the track there. You've got an array name in a scalar context on the right. Therefore, a length.

OK so far, but now I want to derefence the array for a join, but:

join '', @$page_graphic->[$i]->{array}; # gives num elements
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Well, my guess is that eventually, you'll want this:

join '', @{$page_graphic->[$i]->{array}};
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Every other guess provides the wrong answer.

Just the odd-numbered guesses? {grin}

-- Randal L. Schwartz, Perl hacker