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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 989 | if ( $feed == '' || $feed == 'feed' ) |
| 990 | $feed = get_default_feed(); |
| 991 | |
| 992 | $hook = 'do_feed_' . $feed; |
| 993 | if ( !has_action($hook) ) { |
| 994 | $message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed)); |
| 995 | wp_die( $message, '', array( 'response' => 404 ) ); |
| 996 | } |
| 997 | |
| 998 | do_action( $hook, $wp_query->is_comment_feed ); |
| 999 | } |
| 1000 | |
| 1001 | /** |
| 1002 | * Load the RDF RSS 0.91 Feed template. |
| 1003 | * |
| 1004 | * @since 2.1.0 |
| 1005 | */ |
| 1006 | function do_feed_rdf() { |
| 1007 | load_template( ABSPATH . WPINC . '/feed-rdf.php' ); |