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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 |
|---|---|
| 1775 | if ( $feed == '' || $feed == 'feed' ) |
| 1776 | $feed = get_default_feed(); |
| 1777 | |
| 1778 | $hook = 'do_feed_' . $feed; |
| 1779 | if ( !has_action($hook) ) { |
| 1780 | $message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed)); |
| 1781 | wp_die( $message, '', array( 'response' => 404 ) ); |
| 1782 | } |
| 1783 | |
| 1784 | do_action( $hook, $wp_query->is_comment_feed ); |
| 1785 | } |
| 1786 | |
| 1787 | /** |
| 1788 | * Load the RDF RSS 0.91 Feed template. |
| 1789 | * |
| 1790 | * @since 2.1.0 |
| 1791 | */ |
| 1792 | function do_feed_rdf() { |
| 1793 | load_template( ABSPATH . WPINC . '/feed-rdf.php' ); |