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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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10 | echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>'; |
11 | ?> |
12 | <rss version="2.0" |
13 | xmlns:content="http://purl.org/rss/1.0/modules/content/" |
14 | xmlns:dc="http://purl.org/dc/elements/1.1/" |
15 | xmlns:atom="http://www.w3.org/2005/Atom" |
16 | xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" |
17 | <?php |
18 | /** This action is documented in wp-includes/feed-rss2.php */ |
19 | do_action( 'rss2_ns' ); |
20 | ?> |
21 |
|
22 | <?php |
23 | /** |
24 | * Fires at the end of the RSS root to add namespaces. |
25 | * |
26 | * @since 2.8.0 |
27 | */ |
28 | do_action( 'rss2_comments_ns' ); |