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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
680 | } |
681 | } |
682 | } |
683 |
|
684 | $sidebars_widgets = wp_get_sidebars_widgets(); |
685 | if ( empty( $wp_registered_sidebars[ $index ] ) || empty( $sidebars_widgets[ $index ] ) || ! is_array( $sidebars_widgets[ $index ] ) ) { |
686 | /** This action is documented in wp-includes/widget.php */ |
687 | do_action( 'dynamic_sidebar_before', $index, false ); |
688 | /** This action is documented in wp-includes/widget.php */ |
689 | do_action( 'dynamic_sidebar_after', $index, false ); |
690 | /** This filter is documented in wp-includes/widget.php */ |
691 | return apply_filters( 'dynamic_sidebar_has_widgets', false, $index ); |
692 | } |
693 |
|
694 | /** |
695 | * Fires before widgets are rendered in a dynamic sidebar. |
696 | * |
697 | * Note: The action also fires for empty sidebars, and on both the front end |
698 | * and back end, including the Inactive Widgets sidebar on the Widgets screen. |
Line | Code |
813 | * Note: The action also fires for empty sidebars, and on both the front end |
814 | * and back end, including the Inactive Widgets sidebar on the Widgets screen. |
815 | * |
816 | * @since 3.9.0 |
817 | * |
818 | * @param int|string $index Index, name, or ID of the dynamic sidebar. |
819 | * @param bool $has_widgets Whether the sidebar is populated with widgets. |
820 | * Default true. |
821 | */ |
822 | do_action( 'dynamic_sidebar_after', $index, true ); |
823 |
|
824 | /** |
825 | * Filters whether a sidebar has widgets. |
826 | * |
827 | * Note: The filter is also evaluated for empty sidebars, and on both the front end |
828 | * and back end, including the Inactive Widgets sidebar on the Widgets screen. |
829 | * |
830 | * @since 3.9.0 |
831 | * |