Title: wp_update_site
Published: February 22, 2019
Last modified: February 24, 2026

---

# wp_update_site( int $site_id, array $data ): int|󠀁[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)󠁿

## In this article

 * [Parameters](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#source)
 * [Hooks](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#hooks)
 * [Related](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#wp--skip-link--target)

Updates a site in the database.

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

 `$site_id`intrequired

ID of the site that should be updated.

`$data`arrayrequired

Site data to update. See [wp_insert_site()](https://developer.wordpress.org/reference/functions/wp_insert_site/)
for the list of supported keys.

## 󠀁[Return](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#return)󠁿

 int|[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/) The
updated site’s ID on success, or error object on failure.

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

    ```php
    function wp_update_site( $site_id, array $data ) {
    	global $wpdb;

    	if ( empty( $site_id ) ) {
    		return new WP_Error( 'site_empty_id', __( 'Site ID must not be empty.' ) );
    	}

    	$old_site = get_site( $site_id );
    	if ( ! $old_site ) {
    		return new WP_Error( 'site_not_exist', __( 'Site does not exist.' ) );
    	}

    	$defaults                 = $old_site->to_array();
    	$defaults['network_id']   = (int) $defaults['site_id'];
    	$defaults['last_updated'] = current_time( 'mysql', true );
    	unset( $defaults['blog_id'], $defaults['site_id'] );

    	$data = wp_prepare_site_data( $data, $defaults, $old_site );
    	if ( is_wp_error( $data ) ) {
    		return $data;
    	}

    	if ( false === $wpdb->update( $wpdb->blogs, $data, array( 'blog_id' => $old_site->id ) ) ) {
    		return new WP_Error( 'db_update_error', __( 'Could not update site in the database.' ), $wpdb->last_error );
    	}

    	clean_blog_cache( $old_site );

    	$new_site = get_site( $old_site->id );

    	/**
    	 * Fires once a site has been updated in the database.
    	 *
    	 * @since 5.1.0
    	 *
    	 * @param WP_Site $new_site New site object.
    	 * @param WP_Site $old_site Old site object.
    	 */
    	do_action( 'wp_update_site', $new_site, $old_site );

    	return (int) $new_site->id;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/ms-site.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/ms-site.php#L159)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/ms-site.php#L159-L200)

## 󠀁[Hooks](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#hooks)󠁿

 [do_action( ‘wp_update_site’, WP_Site $new_site, WP_Site $old_site )](https://developer.wordpress.org/reference/hooks/wp_update_site/)

Fires once a site has been updated in the database.

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

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

Prepares site data for insertion or update in the database.

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

Retrieves site data given a site ID or site object.

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

Retrieves the current time based on specified type.

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

Clean the blog cache

  | 
| [wpdb::update()](https://developer.wordpress.org/reference/classes/wpdb/update/)`wp-includes/class-wpdb.php` |

Updates a row in the table.

  | 
| [__()](https://developer.wordpress.org/reference/functions/__/)`wp-includes/l10n.php` |

Retrieves the translation of $text.

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

Calls the callback functions that have been added to an action hook.

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

Checks whether the given variable is a WordPress Error.

  | 
| [WP_Error::__construct()](https://developer.wordpress.org/reference/classes/wp_error/__construct/)`wp-includes/class-wp-error.php` |

Initializes the error.

  |

[Show 4 more](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#)
[Show less](https://developer.wordpress.org/reference/functions/wp_update_site/?output_format=md#)

| Used by | Description | 
| [update_blog_status()](https://developer.wordpress.org/reference/functions/update_blog_status/)`wp-includes/ms-blogs.php` |

Updates a blog details field.

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

Updates the details for a blog and the blogs table for a given blog ID.

  |

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

| Version | Description | 
| [5.1.0](https://developer.wordpress.org/reference/since/5.1.0/) | Introduced. |

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