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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 |
|---|---|
| 2767 | * @since 2.8.0 |
| 2768 | * @deprecated 3.3.0 |
| 2769 | * |
| 2770 | * @return string |
| 2771 | */ |
| 2772 | function get_index_rel_link() { |
| 2773 | _deprecated_function( __FUNCTION__, '3.3' ); |
| 2774 | |
| 2775 | $link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n"; |
| 2776 | return apply_filters( "index_rel_link", $link ); |
| 2777 | } |
| 2778 | |
| 2779 | /** |
| 2780 | * Display relational link for the site index. |
| 2781 | * |
| 2782 | * @since 2.8.0 |
| 2783 | * @deprecated 3.3.0 |
| 2784 | */ |
| 2785 | function index_rel_link() { |