How can I list Content Types as checkbox in Profile types for Drupal

Question

In drupal user registration, Users should be able to choose the types which they want to subscribe to. So, how can I list Content Types (node types) in Custom Profile Registration Type?

http://i.stack.imgur.com/hvWd2.png

Answer 1

You can retrieve all Content Types with node_type_get_names() function. So, in hook_form_alter add:

$form['ct'] = array(
  '#type' => 'checkboxes',
  '#options' => node_type_get_names(),
  '#title' => t('What standardized tests did you take?'),
);