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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 |
---|---|
616 | * Filters the current feed URL. |
617 | * |
618 | * @since 3.6.0 |
619 | * |
620 | * @see set_url_scheme() |
621 | * @see wp_unslash() |
622 | * |
623 | * @param string $feed_link The link for the feed with set URL scheme. |
624 | */ |
625 | echo esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) ); |
626 | } |
627 |
|
628 | /** |
629 | * Return the content type for specified feed type. |
630 | * |
631 | * @since 2.8.0 |
632 | * |
633 | * @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'. |
634 | */ |