Remember that a hash is a datastructure where each element has a *key* and a *value*. Looking at your code I think your intent was to create a hash (%dataoptions) that had one key "Gender", and that key "Gender" having a related value that is an array whose elements are "Male" and "Female".

So, this: 

   my %dataoptions = (
      "Gender", ["Male", "Female"]
   );

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should be this: 
   my %dataoptions = (
      "Gender" => ["Male", "Female"]
   );

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The other thing to remember is that this: 
   ["Male", "Female"]

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creates a *reference* to an anonymous array. So in hash %dataoptions, the value corresponding to key "Gender" is a *reference* to an anomyous array containing elements "Male" and "Female". So then when you do 
   foreach $option ($dataoptions{$columns[$i]})

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$option is a *reference* to an array.

I think you want your loop to be something like this: 

   for ($i = 0; $i < @columns; $i++)
   {
      print $columns[$i].': ';
      my $arrayref = $dataoptions{$columns[$i]};
      foreach $option (@$arrayref)
      {
         print '<input type="radio" name="'.$columns[$i].'" value="'.$
+option.'"> '.$option.' ';
      }
   }

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HTH.

In reply to Re: Foreach in a 2D array by hmerrill
in thread Foreach in a 2D array by monoxide

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