| cache_clear_all | includes/bootstrap.inc | Expire data from the cache. |
| db_query | includes/database.inc | Runs a basic query in the active database. |
| drupal_set_message | includes/bootstrap.inc | Set a message which reflects the status of the performed operation. |
| node_access | modules/node.module | Determine whether the current user may perform the given operation on the
specified node. |
| node_delete | modules/node.module | Delete a node. |
| node_invoke | modules/node.module | Invoke a node hook. |
| node_invoke_nodeapi | modules/node.module | Invoke a hook_nodeapi() operation in all modules. |
| node_load | modules/node.module | Load a node object from the database. |
| search_wipe | modules/search.module | Wipes a part of or the entire search index. |
| t | includes/common.inc | Translate strings to the current locale. |
| theme | includes/theme.inc | Generate the themed representation of a Drupal object. |
| watchdog | includes/bootstrap.inc | Log a system message. |
