Multiselect problem

[eluser]Marcel Karras[/eluser]
Hello,

can someone assist me in using multiselects with CodeIgniter?
I tried to implement it the way shown in the documentation but I only get the last selected element inside the $_POST request.

My form_dropdown function:

Code:

echo form_dropdown (   'installation',
                       $installations,
                       $data['installation'],
                       'style="height:100px;" multiple="multiple"'
                    );

The $data['installation'] array element can be one or more elements so I added the multiple property in order to force the form_dropdown function to make multiple selections possible. Is there a more common way to enable the multiselect property without setting more than one default selection?

When I var_dump my $_POST array variable I can see a 'installation' index but it is not an array but a string with the selection option value of the last selected item. Any idea how to solve this issue?

Thanks in advance!