Determining the $POST variables of a submitted form I have a form on my site. Users fill out the form and submit it. When I want to target one of the fields in the form with a custom module I'd target it with something like the following:

$form['customer_profile_billing']['field_organization'];


But, if I want to target the value a user entered - after they clicked submit, in a custom module, what would be the proper syntax to use, or how would I figure out what my $POST variables are?
The submitted values are available in your custom validate/submit handler in the $form_state['values'] or $form_state['input'] (with the later one storing raw and unvalidated user input). I think this is considered better practice than accessing the values through the $POST variable.