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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 |
---|---|
517 | $link = get_category_link($cat_id); |
518 | if( $feed == get_default_feed() ) |
519 | $feed_link = 'feed'; |
520 | else |
521 | $feed_link = "feed/$feed"; |
522 |
|
523 | $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); |
524 | } |
525 |
|
526 | $link = apply_filters('category_feed_link', $link, $feed); |
527 |
|
528 | return $link; |
529 | } |
530 |
|
531 | /** |
532 | * Retrieve permalink for feed of tag. |
533 | * |
534 | * @since 2.3.0 |
535 | * |