wp_update_comment_count( int|null $post_id, bool $do_deferred = false )

Updates the comment count for post(s).

Description

When $do_deferred is false (is by default) and the comments have been set to be deferred, the post_id will be added to a queue, which will be updated at a later date and only updated once per post ID.

If the comments have not be set up to be deferred, then the post will be updated. When $do_deferred is set to true, then all previous deferred post IDs will be updated along with the current $post_id.

See also

Parameters

$post_id

(Required) Post ID.

$do_deferred

(Optional) Whether to process previously deferred post comment counts.

Default value: false

Return

(bool|void) True on success, false on failure or if post with ID does not exist.

Source

File: wp-includes/comment.php 

function wp_update_comment_count($post_id, $do_deferred=false) {
	static $_deferred = array();

	if ( empty( $post_id ) && ! $do_deferred ) {
		return false;
	}

	if ( $do_deferred ) {
		$_deferred = array_unique($_deferred);
		foreach ( $_deferred as $i => $_post_id ) {
			wp_update_comment_count_now($_post_id);
			unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */
		}
	}

	if ( wp_defer_comment_counting() ) {
		$_deferred[] = $post_id;
		return true;
	}
	elseif ( $post_id ) {
		return wp_update_comment_count_now($post_id);
	}

}

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Changelog

Changelog
Version Description
2.1.0 Introduced.