&reftitle.constants; &pdo.driver-constants;

`PDO::OCI_ATTR_ACTION` (`int`)

- Provides a way to specify the action on the database session.

  &version.exists.asof; 7.2.16 and 7.3.3

`PDO::OCI_ATTR_CLIENT_INFO` (`int`)

- Provides a way to specify the client info on the database session.

  &version.exists.asof; 7.2.16 and 7.3.3

`PDO::OCI_ATTR_CLIENT_IDENTIFIER` (`int`)

- Provides a way to specify the client identifier on the database session.

  &version.exists.asof; 7.2.16 and 7.3.3

`PDO::OCI_ATTR_MODULE` (`int`)

- Provides a way to specify the module on the database session.

  &version.exists.asof; 7.2.16 and 7.3.3