the_category_rss WordPress Filter Hook
The the_category_rss WordPress hook is called when fetching data for a category RSS feed. This hook can be used to modify the data before it is returned.
apply_filters( 'the_category_rss',  string $the_list ,  string $type  ) #
Filters all of the post categories for display in a feed.
Parameters
- $the_list
 (string)All of the RSS post categories.
- $type
 (string)Type of feed. Possible values include 'rss2', 'atom'. Default 'rss2'.
Source
File: wp-includes/feed.php
Changelog
| Version | Description | 
|---|---|
| 1.2.0 | Introduced. |