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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 |
|---|---|
| 683 | |
| 684 | /** |
| 685 | * Remove widget from sidebar. |
| 686 | * |
| 687 | * @since 2.2.0 |
| 688 | * |
| 689 | * @param int|string $id Widget ID. |
| 690 | */ |
| 691 | function wp_unregister_sidebar_widget($id) { |
| 692 | do_action( 'wp_unregister_sidebar_widget', $id ); |
| 693 | |
| 694 | wp_register_sidebar_widget($id, '', ''); |
| 695 | wp_unregister_widget_control($id); |
| 696 | } |
| 697 | |
| 698 | /** |
| 699 | * Registers widget control callback for customizing options. |
| 700 | * |
| 701 | * The options contains the 'height', 'width', and 'id_base' keys. The 'height' |