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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 |
---|---|
2706 | * @since 2.8.0 |
2707 | * @deprecated 3.3.0 |
2708 | * |
2709 | * @return string |
2710 | */ |
2711 | function get_index_rel_link() { |
2712 | _deprecated_function( __FUNCTION__, '3.3' ); |
2713 |
|
2714 | $link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n"; |
2715 | return apply_filters( "index_rel_link", $link ); |
2716 | } |
2717 |
|
2718 | /** |
2719 | * Display relational link for the site index. |
2720 | * |
2721 | * @since 2.8.0 |
2722 | * @deprecated 3.3.0 |
2723 | */ |
2724 | function index_rel_link() { |