Title: unregister_sidebar_widget
Published: April 25, 2014
Last modified: August 20, 2026

---

# unregister_sidebar_widget( int|string $id )

## In this article

 * [Description](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#description)
    - [See also](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#see-also)
 * [Parameters](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#changelog)

This function has been deprecated since 2.8.0. Use [wp_unregister_sidebar_widget()](https://developer.wordpress.org/reference/functions/wp_unregister_sidebar_widget/)
instead.

Serves as an alias of [wp_unregister_sidebar_widget()](https://developer.wordpress.org/reference/functions/wp_unregister_sidebar_widget/).

## 󠀁[Description](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#description)󠁿

### 󠀁[See also](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#see-also)󠁿

 * [wp_unregister_sidebar_widget()](https://developer.wordpress.org/reference/functions/wp_unregister_sidebar_widget/)

## 󠀁[Parameters](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#parameters)󠁿

 `$id`int|stringrequired

Widget ID.

## 󠀁[Source](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#source)󠁿

    ```php
    function unregister_sidebar_widget($id) {
    	_deprecated_function( __FUNCTION__, '2.8.0', 'wp_unregister_sidebar_widget()' );
    	return wp_unregister_sidebar_widget($id);
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/deprecated.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/deprecated.php#L2156)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/deprecated.php#L2156-L2159)

## 󠀁[Related](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#related)󠁿

| Uses | Description | 
| [wp_unregister_sidebar_widget()](https://developer.wordpress.org/reference/functions/wp_unregister_sidebar_widget/)`wp-includes/widgets.php` |

Remove widget from sidebar.

  | 
| [_deprecated_function()](https://developer.wordpress.org/reference/functions/_deprecated_function/)`wp-includes/functions.php` |

Marks a function as deprecated and inform when it has been used.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/functions/unregister_sidebar_widget/?output_format=md#changelog)󠁿

| Version | Description | 
| [2.8.0](https://developer.wordpress.org/reference/since/2.8.0/) | Deprecated. Use [wp_unregister_sidebar_widget()](https://developer.wordpress.org/reference/functions/wp_unregister_sidebar_widget/)  | 
| [2.2.0](https://developer.wordpress.org/reference/since/2.2.0/) | Introduced. |

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