running perl 5.20 every time my script runs I get that warning. Is there a way to silence it without ommiting 'use warnings;'? The warning comes from this code: 
   while (  my ( $key, $value)  = each $HoA ) {
        print $key . " ";
        for ( @$value ) {
            print "$_ ";
        }
        
    }

[download]
The script works perfectly fine otherwise, this is just a cosmetic annoyance as far as I am concerned.

Update:

Thanks for both suggestions, very informative.

In reply to each on reference is experimental at by natxo

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