Title: WP_User::init
Published: April 25, 2014
Last modified: February 24, 2026

---

# WP_User::init( object $data, int $site_id )

## In this article

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

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

Sets up object properties, including capabilities.

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

 `$data`objectrequired

User DB row object.

`$site_id`intoptional

The site ID to initialize for.

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

    ```php
    public function init( $data, $site_id = 0 ) {
    	if ( ! isset( $data->ID ) ) {
    		$data->ID = 0;
    	}
    	$this->data = $data;
    	$this->ID   = (int) $data->ID;

    	$this->for_site( $site_id );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-user.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-wp-user.php#L178)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-user.php#L178-L186)

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

| Uses | Description | 
| [WP_User::for_site()](https://developer.wordpress.org/reference/classes/wp_user/for_site/)`wp-includes/class-wp-user.php` |

Sets the site to operate on. Defaults to the current site.

  |

| Used by | Description | 
| [WP_User::__construct()](https://developer.wordpress.org/reference/classes/wp_user/__construct/)`wp-includes/class-wp-user.php` |

Constructor.

  |

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

| Version | Description | 
| [3.3.0](https://developer.wordpress.org/reference/since/3.3.0/) | Introduced. |

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