Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.5.12 -> satisfiable by phpunit/phpunit[11.5.12, ..., 11.5.27]. - phpunit/phpunit[11.5.12, ..., 11.5.27] require php >=8.2 -> your php version (8.1.33) does not satisfy that requirement.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.5.12 -> satisfiable by phpunit/phpunit[11.5.12, ..., 11.5.27]. - phpunit/phpunit[11.5.12, ..., 11.5.27] require php >=8.2 -> your php version (8.1.33) does not satisfy that requirement.

src/Adapter/Driver/DriverAwareInterface.php:10:57: PossiblyUnusedReturnValue: The return value for this method is never used (see https://psalm.dev/273)

src/Adapter/Driver/AbstractConnection.php:57:21: InvalidNullableReturnType: The declared return type 'resource' for PhpDb\Adapter\Driver\AbstractConnection::getResource is not nullable, but 'null|resource' contains null (see https://psalm.dev/144)

src/Adapter/Driver/AbstractConnection.php:45:21: PossiblyUnusedMethod: Cannot find any calls to method PhpDb\Adapter\Driver\AbstractConnection::getDriverName (see https://psalm.dev/087)

src/Adapter/AdapterAwareInterface.php:8:62: PossiblyUnusedReturnValue: The return value for this method is never used (see https://psalm.dev/273)

src/Adapter/AdapterAbstractServiceFactory.php:48:16: TooFewArguments: Too few arguments for PhpDb\Adapter\Adapter::__construct - expecting queryResultSetPrototype to be passed (see https://psalm.dev/025)

src/Adapter/AdapterAbstractServiceFactory.php:48:16: TooFewArguments: Too few arguments for PhpDb\Adapter\Adapter::__construct - expecting platform to be passed (see https://psalm.dev/025)

src/Adapter/AdapterAbstractServiceFactory.php:16:7: MethodSignatureMismatch: Method PhpDb\Adapter\AdapterAbstractServiceFactory::canCreate with return type '' is different to return type 'bool' of inherited method Laminas\ServiceManager\Factory\AbstractFactoryInterface::canCreate (see https://psalm.dev/042)

src/Adapter/Adapter.php:116:16: NullableReturnStatement: The declared return type 'PhpDb\Adapter\Driver\ResultInterface|PhpDb\Adapter\Driver\StatementInterface|PhpDb\ResultSet\ResultSet' for PhpDb\Adapter\Adapter::query is not nullable, but the function returns 'PhpDb\Adapter\Driver\ResultInterface|null' (see https://psalm.dev/139)

src/Adapter/Adapter.php:61:16: InvalidReturnStatement: The inferred type 'bool|string' does not match the declared return type 'string' for PhpDb\Adapter\Adapter::getCurrentSchema (see https://psalm.dev/128)