this is just for info: 
push @{ $hash{$_->[0]} }, $_->[1] foreach (map {[split /=/]} split (/&
+/, $string));

[download]
the obvious disadvantage is that every hash entry is an array reference, but shouldn't matter.

In reply to Re: Populating an array reference in a hash with with a regex by kabel
in thread Populating an array reference in a hash with with a regex by diakonos

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