Lazy load container

Simple PHP container with lazy load and autowiring

install

composer require wamania/container

Get a service

Each class of your project can be a service.

<?phpuseWamania\Container;
class OneService
{
}
$container = newContainer();
$oneService = $container->get(OneService::class);

Throw an NotFoundException if the service has not been built yet and if the class doesn't exists.

Has a service ?

<?phpuseWamania\Container;
$container = newContainer();
$oneService = $container->has(OneService::class);

Return true if the service has been built or if the class exists, otherwise return false

Autowiring

if you have dependances between your services, the container will try to build them if it can.

class OneService
{
}

class AnotherService
{
private$oneService;
publicfunction__construct(OneService$oneService)
{
$this->oneService = $oneService;
}
publicfunctiongetOneService()
{
return$this->oneService;
}
}

<?phpuseWamania\Container;
$container = newContainer();
$anotherService = $container->get(AnotherService::class);
$oneService = $anotherService->getOneService();

Be careful to circular reference :

• if OneService need AnotherService
• AND if AnotherService need OneService

the container will throw a ContainerException.

If you try to inject an argument which is neither a class/service nor a parameter, and which cannot be null by default, it will throw a ContainerException.

Parameters

You can pass parameters to your container and inject them in your services.

<?phpclass Db
{
private$host;
private$user;
private$password;
// we have defined Container::PARAMETER_PATTERN = '_parameter_%s'// if the container find the pattern in an argument, it inject the corresponding parameter valuepublicfunction__construct($_parameter_host, $_parameter_user, $_parameter_password)
{
$this->host = $_parameter_host;
$this->user = $_parameter_user;
$this->password = $_parameter_password;
}
}

<?phpuseWamania\Container;
$parameters = [
'host' => 'localhost',
'user' => 'user',
'password' => 'secret'
];
$container = newContainer($parameters);
$db = $container->get(Db::class);