Introduction

Windwalker DI is a dependency injection tools, it provides an IoC container to manage objects and dependencies.

We also support service provider to help developers build their service in a universal interface.

In 4.x, Windwalker DI has been totally rewrote.

Installation

Install via composer

composer require windwalker/di ^4.0

Use in Windwalker

Dependency Injection

DI Container is part of Windwalker, you don't need to use it directly. You can inject it in any service or custom class.

class MyClass 
{
    public function __construct(protected FooService $fooService) 
    {
    }
}

Then, register it to etc/di.php:

    // ...

    [
        'bindings' => [
            FooService::class,
            MyClass::class
        ]   
    ]

Now, you can inject your class in View or Controller:

#[Controller]
class DashboardController
{
    public function index(MyClass $myClass)
    {
        //
    }
}

Directly use Container

If you want to directly use Container, you can inject itself.

use \Windwalker\DI\Container;

#[Controller]
class DashboardController
{
    public function index(Container $container)
    {
        $fooService = $container->get(FooService::class);
    }
}

Or use AppContext, it is a container wrapper:

use \Windwalker\Core\Application\AppContext;

#[Controller]
class DashboardController
{
    public function index(AppContext $app)
    {
        $fooService = $app->make(FooService::class);
    }
}

Use as Standalone Component

If you want to use Container without Windwalker core, just create it.

$container = new \Windwalker\DI\Container();

$container->share(MyClass::class, new MyClass());

$myClass = $container->get(MyClass::class);