perlmultidimensional-arrayhashcomplex-data-types

Perl - how to create dynamic multi level hash using array of elements as keys

I like to create a multi level hash by using an array that stores the elements to form the multi level keys. Example:

@elements = ('level1','level2','level3');

And want something like this:

$hashdata{level1}{level2}{level3} = 'store anything i want';

is there something that can easily do this? package?

thanks

Solution

  • A most well-known tool is probably Data::Diver

    use warnings;
use strict;    
use Data::Dump qw(dd);

use Data::Diver qw(DiveVal);

my @elems = qw(lev1 lev2 lev3);

my %hash;

DiveVal(\%hash, @elems) = "value";

dd \%hash;

    The DiveVal is an lvalue subroutine (can be assigned to), and which autovivifies when it can.