| cache_clear_all | drupal/includes/bootstrap.inc | Expire data from the cache. |
| db_fetch_array | drupal/includes/database.pgsql.inc | Fetch one result row from the previous query as an array. |
| db_query | drupal/includes/database.inc | Runs a basic query in the active database. |
| drupal_goto | drupal/includes/common.inc | Send the user to a different Drupal page. |
| drupal_set_message | drupal/includes/bootstrap.inc | Set a message for the user to see. |
| drupal_set_title | drupal/includes/bootstrap.inc | Set the title of the current page, for display on the page and in the title bar. |
| form | drupal/includes/common.inc | Generate a form from a set of form elements. |
| form_checkboxes | drupal/includes/common.inc | Format a set of checkboxes. |
| form_group | drupal/includes/common.inc | Format a group of form items. |
| form_radios | drupal/includes/common.inc | Format a set of radio buttons. |
| form_submit | drupal/includes/common.inc | Format a form submit button. |
| form_textarea | drupal/includes/common.inc | Format a multiple-line text field. |
| module_invoke | drupal/includes/module.inc | Invoke a hook in a particular module. |
| node_invoke | drupal/modules/node.module | Invoke a node hook. |
| node_list | drupal/modules/node.module | Get a list of all the defined node types. |
| t | drupal/includes/common.inc | Translate strings to the current locale. |
| theme | drupal/includes/theme.inc | Generate the themed representation of a Drupal object. |
