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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 |
|---|---|
| 27 | <?php |
| 28 | if ( have_comments() ) : while ( have_comments() ) : the_comment(); |
| 29 | $comment_post = get_post($comment->comment_post_ID); |
| 30 | get_post_custom($comment_post->ID); |
| 31 | ?> |
| 32 | <entry> |
| 33 | <title><?php |
| 34 | if ( !is_singular() ) { |
| 35 | $title = get_the_title($comment_post->ID); |
| 36 | $title = apply_filters('the_title', $title); |
| 37 | $title = apply_filters('the_title_rss', $title); |
| 38 | printf(__('Comment on %1$s by %2$s'), $title, get_comment_author_rss()); |
| 39 | } else { |
| 40 | printf(__('By: %s'), get_comment_author_rss()); |
| 41 | } |
| 42 | ?></title> |
| 43 | <link rel="alternate" href="<?php comment_link(); ?>" type="<?php bloginfo_rss('content_type'); ?>" /> |
| 44 | |
| 45 | <author> |