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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 |
|---|---|
| 694 | |
| 695 | /** |
| 696 | * Remove widget from sidebar. |
| 697 | * |
| 698 | * @since 2.2.0 |
| 699 | * |
| 700 | * @param int|string $id Widget ID. |
| 701 | */ |
| 702 | function wp_unregister_sidebar_widget($id) { |
| 703 | do_action( 'wp_unregister_sidebar_widget', $id ); |
| 704 | |
| 705 | wp_register_sidebar_widget($id, '', ''); |
| 706 | wp_unregister_widget_control($id); |
| 707 | } |
| 708 | |
| 709 | /** |
| 710 | * Registers widget control callback for customizing options. |
| 711 | * |
| 712 | * The options contains the 'height', 'width', and 'id_base' keys. The 'height' |