Title: wp_install
Published: April 25, 2014
Last modified: May 20, 2026

---

# do_action( ‘wp_install’, WP_User $user )

## In this article

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

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

Fires after a site is fully installed.

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

 `$user`[WP_User](https://developer.wordpress.org/reference/classes/wp_user/)

The site owner.

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

    ```php
    do_action( 'wp_install', $user );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/upgrade.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-admin/includes/upgrade.php#L152)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/upgrade.php#L152-L152)

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

| Used by | Description | 
| [wp_install()](https://developer.wordpress.org/reference/functions/wp_install/)`wp-admin/includes/upgrade.php` |

Installs the site.

  |

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

| Version | Description | 
| [3.9.0](https://developer.wordpress.org/reference/since/3.9.0/) | Introduced. |

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