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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 |
---|---|
674 | * Filters the current feed URL. |
675 | * |
676 | * @since 3.6.0 |
677 | * |
678 | * @see set_url_scheme() |
679 | * @see wp_unslash() |
680 | * |
681 | * @param string $feed_link The link for the feed with set URL scheme. |
682 | */ |
683 | echo esc_url( apply_filters( 'self_link', get_self_link() ) ); |
684 | } |
685 |
|
686 | /** |
687 | * Gets the UTC time of the most recently modified post from WP_Query. |
688 | * |
689 | * If viewing a comment feed, the time of the most recently modified |
690 | * comment will be returned. |
691 | * |
692 | * @global WP_Query $wp_query WordPress Query object. |