| Name | Description |
|---|---|
| Hooks | Allow modules to interact with the Drupal core. |
| Name | Location | Description |
|---|---|---|
| check_plain | drupal/includes/bootstrap.inc | Encode special characters in a plain-text string for display as HTML. |
| node_get_types | drupal/modules/node/node.module | Builds a list of available node types, and returns all of part of this list in the specified format. |
| t | drupal/includes/common.inc | Translate strings to the page language or a given language. |