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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 | echo '<?xml version="1.0" encoding="' . get_option('blog_charset') . '" ?' . '>'; |
10 | ?> |
11 | <feed |
12 | xmlns="http://www.w3.org/2005/Atom" |
13 | xml:lang="<?php bloginfo_rss( 'language' ); ?>" |
14 | xmlns:thr="http://purl.org/syndication/thread/1.0" |
15 | <?php |
16 | /** This action is documented in wp-includes/feed-atom.php */ |
17 | do_action( 'atom_ns' ); |
18 | |
19 | /** |
20 | * Fires inside the feed tag in the Atom comment feed. |
21 | * |
22 | * @since 2.8.0 |
23 | */ |
24 | do_action( 'atom_comments_ns' ); |
25 | ?> |
26 | > |