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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 |
|---|---|
| 25 | else |
| 26 | printf(ent2ncr(__('Comments for %s')), get_bloginfo_rss( 'name' ) . get_wp_title_rss()); |
| 27 | ?></title> |
| 28 | <atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" /> |
| 29 | <link><?php (is_single()) ? the_permalink_rss() : bloginfo_rss("url") ?></link> |
| 30 | <description><?php bloginfo_rss("description") ?></description> |
| 31 | <lastBuildDate><?php echo mysql2date('r', get_lastcommentmodified('GMT')); ?></lastBuildDate> |
| 32 | <?php the_generator( 'rss2' ); ?> |
| 33 | <sy:updatePeriod><?php echo apply_filters( 'rss_update_period', 'hourly' ); ?></sy:updatePeriod> |
| 34 | <sy:updateFrequency><?php echo apply_filters( 'rss_update_frequency', '1' ); ?></sy:updateFrequency> |
| 35 | <?php do_action('commentsrss2_head'); ?> |
| 36 | <?php |
| 37 | if ( have_comments() ) : while ( have_comments() ) : the_comment(); |
| 38 | $comment_post = get_post($comment->comment_post_ID); |
| 39 | get_post_custom($comment_post->ID); |
| 40 | ?> |
| 41 | <item> |
| 42 | <title><?php |
| 43 | if ( !is_singular() ) { |