function wc_get_server_database_version() {
	global $wpdb;

	if ( empty( $wpdb->is_mysql ) ) {
		return array(
			'string' => '',
			'number' => '',
		);
	}

	if ( $wpdb->use_mysqli ) {
		$server_info = mysqli_get_server_info( $wpdb->dbh ); // @codingStandardsIgnoreLine.
	} else {
		$server_info = mysql_get_server_info( $wpdb->dbh ); // @codingStandardsIgnoreLine.
	}

	return array(
		'string' => $server_info,
		'number' => preg_replace( '/([^\d.]+).*/', '', $server_info ),
	);
}