freddo411 has asked for the wisdom of the Perl Monks concerning the following question:

Simple Syntax question -- I think.

This syntax works, 

   my %d = (    '1'     =>      "expire_date",
                '2'     =>      "submit_date",  );
   my @a = sort(keys(%d)) ;
   my $date_dd_str = CGI::popup_menu(
                -name   =>      'date_name',
                -values =>      \@a,            
                -labels =>      \%d );

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but, trying to this syntax gives an error: 

   my %d = (    '1'     =>      "expire_date",
                '2'     =>      "submit_date",  );
   my $date_dd_str = CGI::popup_menu(
                -name   =>      'date_name',
                -values =>      \sort(keys(%d)),            
                -labels =>      \%d );

[download]

Can someone enlighten me on what I'm doing wrong?

How, syntactically, do I provide array syntax and then grab a reference to the result? (I think I said that right).

-------------------------------------
Nothing is too wonderful to be true
-- Michael Faraday

Replies are listed 'Best First'.
Re: Simple Array Syntax question
by Fletch (Bishop) on May 19, 2004 at 20:41 UTC

    Why it doesn't work: sort returns a list, not an array. To get an arrayref you've got to use the anonymous arrayref constructor as was previously mentioned.

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      Thanks for the explaination

      -------------------------------------
      Nothing is too wonderful to be true
      -- Michael Faraday

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Re: Simple Array Syntax question
by dave_the_m (Monsignor) on May 19, 2004 at 20:34 UTC
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Re: Simple Array Syntax question
by Plankton (Vicar) on May 19, 2004 at 20:41 UTC
    My guess ... 
    -values =>      \sort(keys(%d)),

    [download]
    ... should be ... 
    -values =>      [sort(keys(%d))],

    [download]

    Plankton: 1% Evil, 99% Hot Gas.
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