WordPress at a glance
function is not described

clean_comment_cache() WP 2.3.0

Removes a comment from the object cache.

Hooks from the function
Return

null. Nothing.

Usage

clean_comment_cache( $ids );
$ids(int|array) (required)
Comment ID or an array of comment IDs to remove from cache.

Changelog

Since 2.3.0 Introduced.

Code of clean_comment_cache() WP 5.7.2

<?php
function clean_comment_cache( $ids ) {
	foreach ( (array) $ids as $id ) {
		wp_cache_delete( $id, 'comment' );

		/**
		 * Fires immediately after a comment has been removed from the object cache.
		 *
		 * @since 4.5.0
		 *
		 * @param int $id Comment ID.
		 */
		do_action( 'clean_comment_cache', $id );
	}

	wp_cache_set( 'last_changed', microtime(), 'comment' );
}