Do you want to use arrays as hash keys? Only strings can be hash keys in Perl, but you can get a stringified representation of an array using eg. Data::Dumper or YAML, so you should do something like this: 
use Data::Dumper;
$hash{Dumper(\@array)} = $value;

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In reply to Re: Mapping an array to a string by bunch
in thread Mapping an array to a string by chuck_norris

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