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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 |
|---|---|
| 24 | if ( have_comments() ) : while ( have_comments() ) : the_comment(); |
| 25 | $comment_post = get_post($comment->comment_post_ID); |
| 26 | get_post_custom($comment_post->ID); |
| 27 | ?> |
| 28 | <item> |
| 29 | <title><?php |
| 30 | if ( !is_singular() ) { |
| 31 | $title = get_the_title($comment_post->ID); |
| 32 | $title = apply_filters('the_title', $title); |
| 33 | $title = apply_filters('the_title_rss', $title); |
| 34 | printf(__('Comment on %1$s by %2$s'), $title, get_comment_author_rss()); |
| 35 | } else { |
| 36 | printf(__('By: %s'), get_comment_author_rss()); |
| 37 | } |
| 38 | ?></title> |
| 39 | <link><?php comment_link() ?></link> |
| 40 | <author><?php echo get_comment_author_rss() ?></author> |
| 41 | <pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_comment_time('Y-m-d H:i:s', true), false); ?></pubDate> |
| 42 | <guid><?php comment_link() ?></guid> |