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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 |
|---|---|
| 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 | > |
| 27 | <title type="text"><?php |
| 28 | if ( is_singular() ) |
| 29 | printf( ent2ncr( __( 'Comments on %s' ) ), get_the_title_rss() ); |
| 30 | elseif ( is_search() ) |
| 31 | printf( ent2ncr( __( 'Comments for %1$s searching on %2$s' ) ), get_bloginfo_rss( 'name' ), get_search_query() ); |
| 32 | else |
| 33 | printf( ent2ncr( __( 'Comments for %s' ) ), get_bloginfo_rss( 'name' ) . get_wp_title_rss() ); |