Question about form_dropdown() function in the form helper

Question about form_dropdown() function in the form helper - Printable Version

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Question about form_dropdown() function in the form helper - El Forum - 10-31-2008

[eluser]Unknown[/eluser]
I want to know if i can do something like this:

Code:
$options = array(

     '1' => 'test', 

     '2' => 'test', 

     '3' => 'test', 

     '4' => array(

          '5' => 'test', 

          '6' => 'test', 

          '7' => array(

               '8' => 'test'

          )

     ), 

);

echo form_dropdown('categories', $options);

and the output will be:
test
test
test
-test
-test
--test
Thank you!!!