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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 |
|---|---|
| 620 | |
| 621 | $link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' ); |
| 622 | } |
| 623 | |
| 624 | if ( 'category' == $taxonomy ) |
| 625 | $link = apply_filters( 'category_feed_link', $link, $feed ); |
| 626 | elseif ( 'post_tag' == $taxonomy ) |
| 627 | $link = apply_filters( 'category_feed_link', $link, $feed ); |
| 628 | else |
| 629 | $link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy ); |
| 630 | |
| 631 | return $link; |
| 632 | } |
| 633 | |
| 634 | /** |
| 635 | * Retrieve permalink for feed of tag. |
| 636 | * |
| 637 | * @since 2.3.0 |
| 638 | * |