PDOWrapper::createConnection PHP Метод

    protected function createConnection($driver, $host, $name, $user, $password, $port = null)
    {
        if (!$this->validateDriver($driver)) {
            throw new Exception('DATABASE WRAPPER::error, the database you wish to connect to is not supported by your install of PHP.');
        }
        // attempt to create pdo object and connect to the database
        try {
            //@TODO the following drivers are NOT supported yet: odbc, ibm, informix, 4D
            // build the connection string from static constants based on the selected PDO Driver.
            if ($driver == "sqlite" || $driver == "sqlite2") {
                $connection_string = $driver . ':' . $host;
            } elseif ($driver == "sqlsrv") {
                $connection_string = "sqlsrv:Server=" . $host . ";Database=" . $name;
            } elseif ($driver == "firebird" || $driver == "oci") {
                $connection_string = $driver . ":dbname=" . $name;
            } else {
                $connection_string = $driver . ':host=' . $host . ';dbname=' . $name;
            }
            // add the port if one was specified
            if (!empty($port)) {
                $connection_string .= ";port={$port}";
            }
            // initialize the PDO object
            $new_connection = new PDO($connection_string, $user, $password);
            // set the error mode
            $new_connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            // return the new connection
            return $new_connection;
        } catch (PDOException $e) {
            if (self::$LOG_ERRORS == true) {
                error_log('DATABASE WRAPPER::' . print_r($e, true));
            }
            $this->pdo_exception = $e;
            return false;
        } catch (Exception $e) {
            if (self::$LOG_ERRORS == true) {
                error_log('DATABASE WRAPPER::' . print_r($e, true));
            }
            $this->pdo_exception = $e;
            return false;
        }
    }