wp-includes/functions.php:1606Loads the feed template from the use of an action hook.
One hook fires while do_feed() runs, in this order:
function do_feed() { global $wp_query; $feed = get_query_var( 'feed' ); // Remove the pad, if present. $feed = preg_replace( '/^_+/', '', $feed ); if ( '' === $feed || 'feed' === $feed ) { $feed = get_default_feed(); } if ( ! has_action( "do_feed_{$feed}" ) ) { wp_die( __( '<strong>Error:</strong> This is not a valid feed template.' ), '', array( 'response' => 404 ) ); } /** * Fires once the given feed is loaded. * * The dynamic portion of the hook name, `$feed`, refers to the feed template name. * * Possible hook names include: * * - `do_feed_atom` * - `do_feed_rdf` * - `do_feed_rss` * - `do_feed_rss2` * * @since 2.1.0 * @since 4.4.0 The `$feed` parameter was added. * * @param bool $is_comment_feed Whether the feed is a comment feed. * @param string $feed The feed name. */ do_action( "do_feed_{$feed}", $wp_query->is_comment_feed, $feed );}Introduced in 2.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.