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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 |
|---|---|
| 8 | header('Content-Type: ' . feed_content_type('atom') . '; charset=' . get_option('blog_charset'), true); |
| 9 | $more = 1; |
| 10 | |
| 11 | echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>'; ?> |
| 12 | <feed |
| 13 | xmlns="http://www.w3.org/2005/Atom" |
| 14 | xmlns:thr="http://purl.org/syndication/thread/1.0" |
| 15 | xml:lang="<?php echo get_option('rss_language'); ?>" |
| 16 | xml:base="<?php bloginfo_rss('url') ?>/wp-atom.php" |
| 17 | <?php do_action('atom_ns'); ?> |
| 18 | > |
| 19 | <title type="text"><?php bloginfo_rss('name'); wp_title_rss(); ?></title> |
| 20 | <subtitle type="text"><?php bloginfo_rss("description") ?></subtitle> |
| 21 | |
| 22 | <updated><?php echo mysql2date('Y-m-d\TH:i:s\Z', get_lastpostmodified('GMT'), false); ?></updated> |
| 23 | |
| 24 | <link rel="alternate" type="text/html" href="<?php bloginfo_rss('url') ?>" /> |
| 25 | <id><?php bloginfo('atom_url'); ?></id> |
| 26 | <link rel="self" type="application/atom+xml" href="<?php self_link(); ?>" /> |