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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 |
|---|---|
| 546 | $link = get_author_posts_url($author_id); |
| 547 | if ( $feed == get_default_feed() ) |
| 548 | $feed_link = 'feed'; |
| 549 | else |
| 550 | $feed_link = "feed/$feed"; |
| 551 | |
| 552 | $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); |
| 553 | } |
| 554 | |
| 555 | $link = apply_filters('author_feed_link', $link, $feed); |
| 556 | |
| 557 | return $link; |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Retrieve the feed link for a category. |
| 562 | * |
| 563 | * Returns a link to the feed for all post in a given category. A specific feed |
| 564 | * can be requested or left blank to get the default feed. |