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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 |
|---|---|
| 80 | |
| 81 | function comments_rss($commentsrssfilename = '') { |
| 82 | global $id; |
| 83 | |
| 84 | if ('' != get_settings('permalink_structure')) |
| 85 | $url = trailingslashit( get_permalink() ) . 'feed/'; |
| 86 | else |
| 87 | $url = get_settings('home') . "/$commentsrssfilename?feed=rss2&p=$id"; |
| 88 | |
| 89 | return apply_filters('post_comments_feed_link', $url); |
| 90 | } |
| 91 | |
| 92 | function get_author_rss_link($echo = false, $author_id, $author_nicename) { |
| 93 | $auth_ID = $author_id; |
| 94 | $permalink_structure = get_settings('permalink_structure'); |
| 95 | |
| 96 | if ('' == $permalink_structure) { |
| 97 | $link = get_settings('home') . '?feed=rss2&author=' . $author_id; |
| 98 | } else { |