Fish, David wrote:
>> Hello! The problem I am having is I am pulling data from a table
>> in a certain order and loading it into the hash array but when I
>> read the hash array it comes out in a different order than it is
>> written. What I have done as a work around, is the read the data
>> from a file that has it in the correct order. Is there away to
>> build the hash so that it reads in the order it was created?
perldoc -q "hash remember the order"
How can I make my hash remember the order I put elements into it?
Use the "Tie::IxHash" from CPAN.
use Tie::IxHash;
tie my %myhash, 'Tie::IxHash';
for (my $i=0; $i<20; $i++) {
$myhash{$i} = 2*$i;
}
my @keys = keys %myhash;
# @keys = (0,1,2,3,...)
--
Henry Hartley
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