Perl Sort on associative arrays

Hello,

I want a sort on keys of a associative array. the keys are like 5, 10, 20, 30

I want to show them and the value associated to these keys, but in the ordinal order.
but my sort show: 10 20 30 5

because 1 2 3 5, it sorts this like string, but i want it sorted numericaly!

look at my code:

--------------------------------------------
      my      %liste_sequences = ();
    while( $db->FetchRow() ) {
             %hash = $db->DataHash;
               $liste_sequences{$hash{ordre_affichage}} = $hash{sequence};
      }

      $compteur = 10;
      foreach $ordre_aff (sort(keys(%liste_sequences))) {
                  print "--> $ordre_aff <br>";
        }
---------------------------------------------

Thanx a lot
uberdruckAsked:
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jhurstCommented:
You will need to create  your own sort function or modify your keys.  Personaly I would do the former.  I would make the keys space filled numbers.
bcladdCommented:
Try the following in your sort loop:

 foreach $ordre_aff (sort {$a <=> $b} (keys(%liste_sequences))) {
               print "--> $ordre_aff <br>";
        }

(from the examples on the perlfunc page for the sort function).

-bcl

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jhurstCommented:
This is exactly the type of 'your own' sort function that I had in mind, except that you will need to ensure that the sort is a numeric sort and not a text/ascii character sort
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Perl

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