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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1615 | * - `do_feed_rss` |
| 1616 | * - `do_feed_rss2` |
| 1617 | * |
| 1618 | * @since 2.1.0 |
| 1619 | * @since 4.4.0 The `$feed` parameter was added. |
| 1620 | * |
| 1621 | * @param bool $is_comment_feed Whether the feed is a comment feed. |
| 1622 | * @param string $feed The feed name. |
| 1623 | */ |
| 1624 | do_action( "do_feed_{$feed}", $wp_query->is_comment_feed, $feed ); |
| 1625 | } |
| 1626 | |
| 1627 | /** |
| 1628 | * Load the RDF RSS 0.91 Feed template. |
| 1629 | * |
| 1630 | * @since 2.1.0 |
| 1631 | * |
| 1632 | * @see load_template() |
| 1633 | */ |