1. drupal
    1. 5
    2. 6
    3. 7 system.api.php
    4. 8 system.api.php
5 hook_forms()
6 – 7 hook_forms($form_id, $args)

Map form_ids to builder functions.

This hook allows modules to build multiple forms from a single form "factory" function but each form will have a different form id for submission, validation, theming or alteration by other modules.

The callback arguments will be passed as parameters to the function. Callers of drupal_get_form() are also able to pass in parameters. These will be appended after those specified by hook_forms().

See node_forms() for an actual example of how multiple forms share a common building function.

Return value

An array keyed by form id with callbacks and optional, callback arguments.

Related topics


documentation/developer/hooks/core.php, line 466

function hook_forms() {
  $forms['mymodule_first_form'] = array(
    'callback' => 'mymodule_form_builder', 
    'callback arguments' => array('some parameter'),
  $forms['mymodule_second_form'] = array(
    'callback' => 'mymodule_form_builder',
  return $forms;