Drupal → Несколько одинаковых форм на одной странице

/**
 * Implements hook_menu().
 */
function modulename_menu() {
  $items = array();
 
  $items['forms'] = array(
    'title' => 'Forms',
    'page callback' => 'modulename_multiple_forms',
    'access callback' => TRUE,
  );
 
  return $items;
}
 
/**
 * Page callback.
 */
function modulename_multiple_forms() {
  $build = array();
 
  for ($i = 0; $i < 3; $i++) {
    $build[] = drupal_get_form('modulename_test_form_' . $i, $i);
  }
 
  return $build;
}
 
/**
 * Implements hook_forms().
 */
function modulename_forms($form_id, $args) {
  $forms = array();
 
  if (strpos($form_id, 'modulename_test_form_') === 0) {
    $forms[$form_id] = array(
      'callback' => 'modulename_test_form',
    );
  }
 
  return $forms;
}
 
/**
 * Form builder.
 */
function modulename_test_form($form, &$form_state, $i) {
  ...
}
 
/**
 * Form submit callback.
 */
function modulename_test_form_submit($form, &$form_state) {
  ...
}