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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 |
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806 | function wp_unregister_sidebar_widget($id) { |
807 |
|
808 | /** |
809 | * Fires just before a widget is removed from a sidebar. |
810 | * |
811 | * @since 3.0.0 |
812 | * |
813 | * @param int $id The widget ID. |
814 | */ |
815 | do_action( 'wp_unregister_sidebar_widget', $id ); |
816 |
|
817 | wp_register_sidebar_widget($id, '', ''); |
818 | wp_unregister_widget_control($id); |
819 | } |
820 |
|
821 | /** |
822 | * Registers widget control callback for customizing options. |
823 | * |
824 | * The options contains the 'height', 'width', and 'id_base' keys. The 'height' |