get_term_feed_link()
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概述
get_term_feed_link() 函数用于获取指定分类法术语的订阅源链接，支持自定义订阅类型，并处理不同固定链接设置下的 URL 生成。
关键要点
- 函数返回指定术语的订阅源链接，失败时返回 false
- 参数 $term 可以是术语 ID、WP_Term 对象或对象，$taxonomy 可选，$feed 指定订阅类型（如 'rss2'、'atom'），默认为 get_default_feed()
- 内部逻辑根据 permalink_structure 设置生成链接，并应用分类法特定的过滤器
- 相关函数包括 get_term_link()、user_trailingslashit() 等
代码示例
echo get_term_feed_link( $tag_id, 'post_tag', 'rss2' );注意事项
- 函数包含多个过滤器：category_feed_link、tag_feed_link、taxonomy_feed_link，可用于自定义链接
- 自 WordPress 3.0.0 版本引入
原文内容
Retrieves the feed link for a term.
Description
Returns a link to the feed for all posts in a given term. A specific feed can be requested or left blank to get the default feed.
Parameters
$termint|WP_Term|objectrequired-
The ID or term object whose feed link will be retrieved.
$taxonomystringoptional-
Taxonomy of
$term_id. $feedstringoptional-
Feed type. Possible values include
'rss2','atom'.
Default is the value of get_default_feed() .
Source
function get_term_feed_link( $term, $taxonomy = '', $feed = '' ) {
if ( ! is_object( $term ) ) {
$term = (int) $term;
}
$term = get_term( $term, $taxonomy );
if ( empty( $term ) || is_wp_error( $term ) ) {
return false;
}
$taxonomy = $term->taxonomy;
if ( empty( $feed ) ) {
$feed = get_default_feed();
}
$permalink_structure = get_option( 'permalink_structure' );
if ( ! $permalink_structure ) {
if ( 'category' === $taxonomy ) {
$link = home_url( "?feed=$feed&cat=$term->term_id" );
} elseif ( 'post_tag' === $taxonomy ) {
$link = home_url( "?feed=$feed&tag=$term->slug" );
} else {
$t = get_taxonomy( $taxonomy );
$link = home_url( "?feed=$feed&$t->query_var=$term->slug" );
}
} else {
$link = get_term_link( $term, $term->taxonomy );
if ( get_default_feed() === $feed ) {
$feed_link = 'feed';
} else {
$feed_link = "feed/$feed";
}
$link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' );
}
if ( 'category' === $taxonomy ) {
/**
* Filters the category feed link.
*
* @since 1.5.1
*
* @param string $link The category feed link.
* @param string $feed Feed type. Possible values include 'rss2', 'atom'.
*/
$link = apply_filters( 'category_feed_link', $link, $feed );
} elseif ( 'post_tag' === $taxonomy ) {
/**
* Filters the post tag feed link.
*
* @since 2.3.0
*
* @param string $link The tag feed link.
* @param string $feed Feed type. Possible values include 'rss2', 'atom'.
*/
$link = apply_filters( 'tag_feed_link', $link, $feed );
} else {
/**
* Filters the feed link for a taxonomy other than 'category' or 'post_tag'.
*
* @since 3.0.0
*
* @param string $link The taxonomy feed link.
* @param string $feed Feed type. Possible values include 'rss2', 'atom'.
* @param string $taxonomy The taxonomy name.
*/
$link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy );
}
return $link;
}
Hooks
- apply_filters( ‘category_feed_link’, string $link, string $feed )
-
Filters the category feed link.
- apply_filters( ‘tag_feed_link’, string $link, string $feed )
-
Filters the post tag feed link.
- apply_filters( ‘taxonomy_feed_link’, string $link, string $feed, string $taxonomy )
-
Filters the feed link for a taxonomy other than ‘category’ or ‘post_tag’.
Changelog
| Version | Description |
|---|---|
| 3.0.0 | Introduced. |
Skip to note 2 content
loka_web
Use that code to get feed link of tag
echo get_term_feed_link( $tag_id , 'post_tag', 'rss2' );