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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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12 |
|
13 | /** |
14 | * Fires between the xml and rss tags in a feed. |
15 | * |
16 | * @since 4.0.0 |
17 | * |
18 | * @param string $context Type of feed. Possible values include 'rss2', 'rss2-comments', |
19 | * 'rdf', 'atom', and 'atom-comments'. |
20 | */ |
21 | do_action( 'rss_tag_pre', 'rss2' ); |
22 | ?> |
23 | <rss version="2.0" |
24 | xmlns:content="http://purl.org/rss/1.0/modules/content/" |
25 | xmlns:wfw="http://wellformedweb.org/CommentAPI/" |
26 | xmlns:dc="http://purl.org/dc/elements/1.1/" |
27 | xmlns:atom="http://www.w3.org/2005/Atom" |
28 | xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" |
29 | xmlns:slash="http://purl.org/rss/1.0/modules/slash/" |
30 | <?php |