Form API How to add fields to a core form
drpratten - November 15, 2006 - 21:25
My new 5.0 module needs to add text and a field to a core form (from user.module). Could someone please point me to some examples of this being done?
The form API docs say that it is possible to alter core forms using a hook, but I have been unable to find any examples or explanation.
Your assistance will be appreciated.
Thanks
David

You're in need of
You're in need of hook_form_alter,
http://api.drupal.org/api/HEAD/function/hook_form_alter
I don't have any handy examples for adding a field, only a simple redirect:
http://www.ubercart.org/ubercart/uberdev/form_redirect_using_hook_form_a...
You might look into logintoboggan, as it uses hook_form_alter to modify the login form and has been updated for 5.0 already.