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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 |
|---|---|
| 473 | $link = get_author_posts_url($author_id); |
| 474 | if ( $feed == get_default_feed() ) |
| 475 | $feed_link = 'feed'; |
| 476 | else |
| 477 | $feed_link = "feed/$feed"; |
| 478 | |
| 479 | $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); |
| 480 | } |
| 481 | |
| 482 | $link = apply_filters('author_feed_link', $link, $feed); |
| 483 | |
| 484 | return $link; |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * Retrieve the feed link for a category. |
| 489 | * |
| 490 | * Returns a link to the feed for all post in a given category. A specific feed |
| 491 | * can be requested or left blank to get the default feed. |