1. If you select the 'forms' tag and select its mini menu option 'info', you will see a link to the Drupal pages for the form API and a great basic explanation on how it is used.
2. You should use PHP in the view. PHP in content of any sort presents a security risk. The best place to do this is in a custom module.
3. The form API provides documentation on both.
4. $form_state is used as central storage for all information about the form. Any part of the $form_state array can be read and written to by any function at any time.

1. If you select the 'forms' tag and select its mini menu option 'info', you will see a link to the Drupal pages for the form API and a great basic explanation on how it is used.
2. You should not use PHP in the view. PHP in content of any sort presents a security risk. The best place to do this is in a custom module.
3. The form API provides documentation on both.
4. $form_state is used as central storage for all information about the form. Any part of the $form_state array can be read and written to by any function at any time.

1. If you select the 'forms' tag and select its mini menu option 'info, you will see a link to the Drupal pages for the form API and a great basic explanation on how it is used.
2. You should use php in the view. PHP in content of any sort presents a security risk. The best place to do this is in a custom module.
3. The form api provides documentation on both
4. $formstate is used as central storage for all information about the form. Any part of the $formstate array can be read and written to by any function at any time.

I have begun adding information to the tags as a sort of Drupal Wiki resource. The tag 'documentation' contains 'info' about several books I have identified, with more to come. If you find a printed or video resource, add it to the tag.

1. If you select the 'forms' tag and select its mini menu option 'info', you will see a link to the Drupal pages for the form API and a great basic explanation on how it is used.
2. You should use PHP in the view. PHP in content of any sort presents a security risk. The best place to do this is in a custom module.
3. The form API provides documentation on both.
4. $form_state is used as central storage for all information about the form. Any part of the $form_state array can be read and written to by any function at any time.