使用动作挂钩加载订阅源模板。
原型
do_feed()
描述
如果Feed动作没有挂钩,则该功能将消失,并显示一条消息,告知访问者该订阅源无效。
源文件
路径:wp-includes/functions.php
<?php
...
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( __( 'ERROR: This is not a valid feed template.' ), '', array( 'response' => 404 ) );
}
/**
* Fires once the given feed is loaded.
*
* The dynamic portion of the hook name, `$feed`, refers to the feed template name.
* Possible values include: 'rdf', 'rss', 'rss2', and 'atom'.
*
* @since 2.1.0
* @since 4.4.0 The `$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 );
}
...
?>
其他
英文文档:https://developer.wordpress.org/reference/functions/do_feed/