Why PHP definitions in PHP-DI not working?

Question

I try to inject dependencies in my handler (service) in my project

class App
{
    public function __construct()
    {
        $this->di();
    }

    public function di() {
        $containerBuilder = new ContainerBuilder;
        $containerBuilder->addDefinitions([
            RegionSql::class => create(App\Connections\MySqlConnection::class),
            CreateRegionHandler::class => create(Region\Infrastructure\Persistance\RegionSql::class),
        ]);
        $container = $containerBuilder->build();
        return $container;
    }
}

My Handler

class CreateRegionHandler
{
    private RegionRepository $repository;

    public function __construct(RegionRepository $repository)
    {
        $this->repository = $repository;
    }

RegionRepository - an interface, RegionSQL is implementation

I trying to run a handler with something like commandBus

$this->commandBus->execute(new CreateRegionCommand('address', 'postal_code', 'country'));

CommandBus

  public function execute($command)
    {
        $handler = $this->resolveHandler($command);
        call_user_func_array([$handler, 'handle'], [$command]);
    }

    private function resolveHandler($command)
    {
        $handler_class = substr(get_class($command), 0, -7) . 'Handler';
        $run = new \ReflectionClass($handler_class);
        return $run->newInstance();
    }

But i getting an error Too few arguments to function Region\Application\Command\CreateRegionHandler::__construct(), 0 passed and exactly 1 expected in Region\Application\Command\CreateRegionHandler.php:

How to get $repository in my CreateRegionHandler ? I tried CreateRegionHandler::class => autowire(Region\Infrastructure\Persistance\RegionSql::class) but it doesn't work too. Thanks

Answer 1

It seems you are creating the Container in the App class, but you are not using it then.

PHP-DI will not magically intercept class creations. You have to use $container->get(<class name>) instead of $run->newInstance() .

See the documentation for more details.