Can the CakePHP form helper be coerced to include a custom attribute?

Question

What I need to do is create a form something like this:

<form method="post" promptpermission="email" action="blahblah">

(Note the promptpermission attribute.)

Is there any way I can do this without straying to far from the helper?

<?php echo $form->create(); ?>

Since it's only one form, I'm loath to go mod very much. Is there a quick and easy way to do this?

Answer 1

Pretty sure the second argument is an options array:

<?php echo $form->create(null, array('promptpermission' => 'email')); ?>

Do note that custom attributes are not valid (X)HTML.