Form submit handlers with additional arguments

Question

For some requirement I need to pass additional information to form submit handler. In form api, while defining custom submit handler as

$additional_args = array();
$form['#submit'][] = 'my_submit_handler'

I expect to submit handler as

function my_submit_handler($form, &$form_state, $additional_args){

Answer 1

The submit handler is called by the drupal fapi, so you can't do something like that. Instead what you can do, is to add what you need, either to the $form, or to the $form_state. The usual approaches is to:

• Added a field to the form, type value to store the value. Don't do this if you have the value in the form definition.

  $form['store'] = array(
    '#type' => 'value',
    '#value' => $value
  );
  

  This will be available in $form_state['values']['store'].

• Add the value to $form_state['storage'], done if you variables in your validation handle you want to transfer to your submit handler:

  // Validation.
  $form_state['storage']['value'] = $value;
  
  ...
  
  // Submit
  $value = $form_state['storage']['value'];
  // Need to unset stored values when not used anymore.
  unset($form_state['storage']['value']);