Beloved Monks,
The quest of a newbie into Perl realms is dangerous and adventurous. I am seeking knowledge from the elders regarding on how can I sort a hash permanently (for example by sorting its keys).

Example: 

use strict;
my %foo = (1 => 'value1',2 => 'value2',3 => 'value3');

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Every time I want to print the hash values sorted by their keys, I have do this: 

print "$foo{$_}\n" foreach sort {$a <=> $b} keys %foo;

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Instead of repeating the sorting, I want to write a subroutine that will permanently sort the hash. 

sub sort_hash {
  my %hash = @_;
  #do the sorting part here, please help :)
  return %hash;
}

my %foo_sorted = sort_hash(%foo);
print "$foo_sorted{$_}\n" foreach keys %foo_sorted;

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The last print should produce the same results as the first print.
Bless me with your knowledge!

In reply to Permanently sort a hash by Anonymous Monk

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