WordPress at a glance
function is not described

the_content_feed() WP 2.9.0

Display the post content for feeds.

No Hooks.

Return

Null. Nothing.

Usage

the_content_feed( $feed_type );
$feed_type(string)
The type of feed. rss2 | atom | rss | rdf
Default: null

Changelog

Since 2.9.0 Introduced.

Code of the_content_feed() WP 5.5.1

<?php
function the_content_feed( $feed_type = null ) {
	echo get_the_content_feed( $feed_type );
}