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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 |
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5 | * @package WordPress |
6 | */ |
7 |
|
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 |
|
13 | /** This action is documented in wp-includes/feed-rss2.php */ |
14 | do_action( 'rss_tag_pre', 'atom' ); |
15 | ?> |
16 | <feed |
17 | xmlns="http://www.w3.org/2005/Atom" |
18 | xmlns:thr="http://purl.org/syndication/thread/1.0" |
19 | xml:lang="<?php bloginfo_rss( 'language' ); ?>" |
20 | xml:base="<?php bloginfo_rss('url') ?>/wp-atom.php" |
21 | <?php |
22 | /** |
23 | * Fires at end of the Atom feed root to add namespaces. |