| check_markup | modules/filter.module | Run all the enabled filters on a piece of text. |
| check_plain | includes/bootstrap.inc | Encode special characters in a plain-text string for display as HTML. |
| comment_nodeapi | modules/comment.module | Implementation of hook_nodeapi(). |
| db_fetch_array | includes/database.pgsql.inc | Fetch one result row from the previous query as an array. |
| db_fetch_object | includes/database.pgsql.inc | Fetch one result row from the previous query as an object. |
| db_query | includes/database.inc | Runs a basic query in the active database. |
| db_result | includes/database.pgsql.inc | Return an individual result field from the previous query. |
| format_plural | includes/common.inc | Format a string containing a count of items. |
| url | includes/common.inc | Generate a URL from a Drupal menu path. Will also pass-through existing URLs. |
| variable_get | includes/bootstrap.inc | Return a persistent variable. |
