this is not about sorting an array, it's about sorting an hash that has arrays in it. the example by brx created a new sorted array @sorted_books. I need the %books hash to be sorted as so: 
%books=(
   '54' => ['enlgish', 'bob falicas', 17], 
   '34' => ['enlgish', 'dani M. rod', 54],
   '24' => ['spanish', 'ramk rovale', 41],
);

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I don't see how the example by brx gives me that. when I print out the %books hash using this: 
while (my($key, $value) = each(%books)){
    print "$key: $value\n";
}

[download]
I get the same unsorted result.

In reply to Re^2: sorting hash by a certain value (that it is in an array) by gooyava
in thread sorting hash by a certain value (that it is in an array) by gooyava

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