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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 |
|---|---|
| 11 | echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>'; ?> |
| 12 | |
| 13 | <rss version="2.0" |
| 14 | xmlns:content="http://purl.org/rss/1.0/modules/content/" |
| 15 | xmlns:wfw="http://wellformedweb.org/CommentAPI/" |
| 16 | xmlns:dc="http://purl.org/dc/elements/1.1/" |
| 17 | xmlns:atom="http://www.w3.org/2005/Atom" |
| 18 | xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" |
| 19 | xmlns:slash="http://purl.org/rss/1.0/modules/slash/" |
| 20 | <?php do_action('rss2_ns'); ?> |
| 21 | > |
| 22 | |
| 23 | <channel> |
| 24 | <title><?php bloginfo_rss('name'); wp_title_rss(); ?></title> |
| 25 | <atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" /> |
| 26 | <link><?php bloginfo_rss('url') ?></link> |
| 27 | <description><?php bloginfo_rss("description") ?></description> |
| 28 | <lastBuildDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_lastpostmodified('GMT'), false); ?></lastBuildDate> |
| 29 | <language><?php echo get_option('rss_language'); ?></language> |