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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 |
|---|---|
| 33 | <?php } elseif(is_search()) { ?> |
| 34 | <link rel="alternate" type="<?php bloginfo_rss('html_type'); ?>" href="<?php echo home_url() . '?s=' . get_search_query(); ?>" /> |
| 35 | <link rel="self" type="application/atom+xml" href="<?php echo get_search_comments_feed_link('', 'atom'); ?>" /> |
| 36 | <id><?php echo get_search_comments_feed_link('', 'atom'); ?></id> |
| 37 | <?php } else { ?> |
| 38 | <link rel="alternate" type="<?php bloginfo_rss('html_type'); ?>" href="<?php bloginfo_rss('url'); ?>" /> |
| 39 | <link rel="self" type="application/atom+xml" href="<?php bloginfo_rss('comments_atom_url'); ?>" /> |
| 40 | <id><?php bloginfo_rss('comments_atom_url'); ?></id> |
| 41 | <?php } ?> |
| 42 | <?php do_action('comments_atom_head'); ?> |
| 43 | <?php |
| 44 | if ( have_comments() ) : while ( have_comments() ) : the_comment(); |
| 45 | $comment_post = $GLOBALS['post'] = get_post( $comment->comment_post_ID ); |
| 46 | ?> |
| 47 | <entry> |
| 48 | <title><?php |
| 49 | if ( !is_singular() ) { |
| 50 | $title = get_the_title($comment_post->ID); |
| 51 | $title = apply_filters('the_title_rss', $title); |