wp_assign_widget_to_sidebar( string $widget_id, string $sidebar_id )

1974function wp_assign_widget_to_sidebar( $widget_id, $sidebar_id ) {1975	$sidebars = wp_get_sidebars_widgets();1976 1977	foreach ( $sidebars as $maybe_sidebar_id => $widgets ) {1978		foreach ( $widgets as $i => $maybe_widget_id ) {1979			if ( $widget_id === $maybe_widget_id && $sidebar_id !== $maybe_sidebar_id ) {1980				unset( $sidebars[ $maybe_sidebar_id ][ $i ] );1981				// We could technically break 2 here, but continue looping in case the ID is duplicated.1982				continue 2;1983			}1984		}1985	}1986 1987	if ( $sidebar_id ) {1988		$sidebars[ $sidebar_id ][] = $widget_id;1989	}1990 1991	wp_set_sidebars_widgets( $sidebars );1992}