the_content_feed( string $feed_type = null )
Display the post content for feeds.
Parameters
- $feed_type
-  (string) (Optional) The type of feed. rss2 | atom | rss | rdf Default value: null 
Source
File: wp-includes/feed.php
function the_content_feed( $feed_type = null ) {
	echo get_the_content_feed( $feed_type );
}  Changelog
| Version | Description | 
|---|---|
| 2.9.0 | Introduced. | 
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Licensed under the GNU GPLv2+ License.
    https://developer.wordpress.org/reference/functions/the_content_feed