How to select multiple values from $form->generate_group_select

[Rahul91]

i m creating my second plugin and i am having problem in multiple select box, i am using:

$form_container->output_row($lang->myplugins_permissions, $lang->myplugins_permissions_desc, $form->generate_group_select('permissions', $usergroups, array('multiple' => 'multiple')));

echo $mybb->input['permissions'];

when i click on submit then its display only one usergroup id. like i select "Registered" then it display only one id that is for Registered User Group so how can i get multiple values??

Any help will be appreciate...!!

[dragonexpert]

In the first parameter of $form->generate_group_select it should be "permissions[]". Make sure also when you are retrieving the data you use implode on $mybb->input['permissions']. This lets you get a comma separated list of what was input.