PDOConnection example

// Allow PDO options to be overridden.     $connection_options += [
      'pdo' => [],
    ];
    $connection_options['pdo'] += [
      \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
      // Convert numeric values to strings when fetching.       \PDO::ATTR_STRINGIFY_FETCHES => TRUE,
    ];

    try {
      $pdo = new PDOConnection('sqlite:' . $connection_options['database'], '', '', $connection_options['pdo']);
    }
    catch (\PDOException $e) {
      if ($e->getCode() == static::DATABASE_NOT_FOUND) {
        throw new DatabaseNotFoundException($e->getMessage(), $e->getCode(), $e);
      }
      // SQLite doesn't have a distinct error code for access denied, so don't       // deal with that case.       throw $e;
    }

    // Create functions needed by SQLite.