dpm does not display form return values

Question

I just enabled the devel module on Drupal 6 and using dpm($form) was showing values for me but it does not show values any more. What would mostly the issue here? Is there a way to see those values?

Thanks

Answer 1

Typical cases for why a dpm(...) doesn't show up:

• Cache: The dpm() is in some cached code and is not actually being executed.
• Access: You are viewing the page with a user that doesn't have access to see the debug messages.
• Ajax/etc: Some code clears the messages before they are rendered, in this case you can use dd() to print to a log file instead.

Answer 2

In say a validation function, to see both the $form structure and what the user has entered, use a devel debug statement like:

dpm(array('$form' => $form, '$form_state' => $form_state), "Validation debug");

The $form_state['values'] array will contain the raw user entries you can then access and validate.