Functions for interacting with the content filtering system.
For more info, see the hook_filter() documentation.
Note: because filters can inject JavaScript or execute PHP code, security is vital here. When a user supplies a $format, you should validate it with filter_access($format) before accepting/using it. This is normally done in the validation stage of the node system. You should for example never make a preview of content in a disallowed format.
Functions & methods
| Name | Description |
|---|---|
| check_markup | Run all the enabled filters on a piece of text. |
| filter_access | Returns TRUE if the user is allowed to access this format. |
| filter_form | Generates a selector for choosing a format in a form. |
| filter_form_validate | Validation callback for filter elements in a form. |
File
- modules/
filter/ filter.module, line 398 - Framework for handling filtering of content.