Zend_Db_Adapter_Pdo_Abstract::getServerVersion PHP Method

    public function getServerVersion()
    {
        $this->_connect();
        try {
            $version = $this->_connection->getAttribute(PDO::ATTR_SERVER_VERSION);
        } catch (PDOException $e) {
            // In case of the driver doesn't support getting attributes
            return null;
        }
        $matches = null;
        if (preg_match('/((?:[0-9]{1,2}\\.){1,3}[0-9]{1,2})/', $version, $matches)) {
            return $matches[1];
        } else {
            return null;
        }
    }