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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 |
|---|---|
| 1 | <?php |
| 2 | header('Content-Type: application/atom+xml; charset=' . get_option('blog_charset'), true); |
| 3 | echo '<?xml version="1.0" encoding="' . get_option('blog_charset') . '" ?' . '>'; |
| 4 | ?> |
| 5 | <feed |
| 6 | xmlns="http://www.w3.org/2005/Atom" |
| 7 | xml:lang="<?php echo get_option('rss_language'); ?>" |
| 8 | <?php do_action('atom_ns'); ?> |
| 9 | > |
| 10 | <title type="text"><?php |
| 11 | if ( is_singular() ) |
| 12 | printf(__('Comments on: %s'), get_the_title_rss()); |
| 13 | elseif ( is_search() ) |
| 14 | printf(__('Comments for %s searching on %s'), get_bloginfo_rss( 'name' ), attribute_escape($wp_query->query_vars['s'])); |
| 15 | else |
| 16 | printf(__('Comments for %s'), get_bloginfo_rss( 'name' ) . get_wp_title_rss()); |
| 17 | ?></title> |