WP_Roles::for_site() WordPress Method

	public function for_site( $site_id = null ) {
		global $wpdb;

		if ( ! empty( $site_id ) ) {
			$this->site_id = absint( $site_id );
		} else {
			$this->site_id = get_current_blog_id();
		}

		$this->role_key = $wpdb->get_blog_prefix( $this->site_id ) . 'user_roles';

		if ( ! empty( $this->roles ) && ! $this->use_db ) {
			return;
		}

		$this->roles = $this->get_roles_data();

		$this->init_roles();
	}
Uses	Description
wp-includes/class-wp-roles.php:WP_Roles::get_roles_data()	Gets the available roles data.
wp-includes/class-wp-roles.php:WP_Roles::init_roles()	Initializes all of the available roles.
wp-includes/load.php:get_current_blog_id()	Retrieve the current site ID.
wp-includes/functions.php:absint()	Convert a value to non-negative integer.
wp-includes/wp-db.php:wpdb::get_blog_prefix()	Gets blog prefix.
Used By	Description
wp-includes/ms-blogs.php:wp_switch_roles_and_user()	Switches the initialized roles and current user capabilities to another site.
wp-includes/class-wp-roles.php:WP_Roles::__construct()	Constructor
wp-includes/class-wp-roles.php:WP_Roles::_init()	Set up the object properties.
wp-includes/class-wp-roles.php:WP_Roles::reinit()	Reinitialize the object
wp-includes/class-wp-user-query.php:WP_User_Query::prepare_query()	Prepares the query variables.