On Wed, 6 Feb 2002, Tomasi, Chuck wrote:
> Does anyone have any clever ideas for sorting an array of hashes based on
> a key such as an ID number?
>
> Example:
>
> @AoH = (
> { ID => 10101, UserID => 1041, Status => 2 },
> { ID => 10541, UserID => 1211, Status => 1 },
> { ID => 10111, UserID => 1211, Status => 2 },
> { ID => 10721, UserID => 1198, Status => 1 }
> );
This is quite similar to the question posed earlier about sorting on an
element of an anonymous array in a hash:
my @AoH = (
{ ID => 10101, UserID => 1041, Status => 2 },
{ ID => 10541, UserID => 1211, Status => 1 },
{ ID => 10111, UserID => 1211, Status => 2 },
{ ID => 10721, UserID => 1198, Status => 1 }
);
my @ID = ();
foreach(@AoH) { push @ID, $_->{ID} }
my @result = sort {$a <=> $b} @ID;
foreach(@result) {
print "$_\n";
}
-- Brett
http://www.chapelperilous.net/
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"Seed me, Seymour"
-- a random number generator meets the big green mother from outer space
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