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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 |
|---|---|
| 6 | */ |
| 7 | |
| 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 do_action('atom_ns'); do_action('atom_comments_ns'); ?> |
| 16 | > |
| 17 | <title type="text"><?php |
| 18 | if ( is_singular() ) |
| 19 | printf( ent2ncr( __( 'Comments on %s' ) ), get_the_title_rss() ); |
| 20 | elseif ( is_search() ) |
| 21 | printf( ent2ncr( __( 'Comments for %1$s searching on %2$s' ) ), get_bloginfo_rss( 'name' ), get_search_query() ); |
| 22 | else |
| 23 | printf( ent2ncr( __( 'Comments for %s' ) ), get_bloginfo_rss( 'name' ) . get_wp_title_rss() ); |
| 24 | ?></title> |