unregister_sidebar( string|int $sidebar_id )

Removes a sidebar from the list.

Parameters

$sidebar_id

(Required) The ID of the sidebar when it was registered.

Source

File: wp-includes/widgets.php 

function unregister_sidebar( $sidebar_id ) {
	global $wp_registered_sidebars;

	unset( $wp_registered_sidebars[ $sidebar_id ] );
}

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Changelog

Changelog
Version Description
WP-2.2.0 Introduced.