update_user_status( int $id, string $pref, int $value, null $deprecated = null )

function update_user_status( $id, $pref, $value, $deprecated = null ) {
	global $wpdb;

	if ( null !== $deprecated )
		_deprecated_argument( __FUNCTION__, 'WP-3.0.2' );

	$wpdb->update( $wpdb->users, array( sanitize_key( $pref ) => $value ), array( 'ID' => $id ) );

	$user = new WP_User( $id );
	clean_user_cache( $user );

	if ( $pref == 'spam' ) {
		if ( $value == 1 ) {
			/**
			 * Fires after the user is marked as a SPAM user.
			 *
			 * @since WP-3.0.0
			 *
			 * @param int $id ID of the user marked as SPAM.
			 */
			do_action( 'make_spam_user', $id );
		} else {
			/**
			 * Fires after the user is marked as a HAM user. Opposite of SPAM.
			 *
			 * @since WP-3.0.0
			 *
			 * @param int $id ID of the user marked as HAM.
			 */
			do_action( 'make_ham_user', $id );
		}
	}

	return $value;
}