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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 |
|---|---|
| 609 | * Filter the current feed URL. |
| 610 | * |
| 611 | * @since 3.6.0 |
| 612 | * |
| 613 | * @see set_url_scheme() |
| 614 | * @see wp_unslash() |
| 615 | * |
| 616 | * @param string $feed_link The link for the feed with set URL scheme. |
| 617 | */ |
| 618 | echo esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) ); |
| 619 | } |
| 620 | |
| 621 | /** |
| 622 | * Return the content type for specified feed type. |
| 623 | * |
| 624 | * @since 2.8.0 |
| 625 | * |
| 626 | * @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'. |
| 627 | */ |