The document discusses deploying PHP applications and introduces Laravel's Inversion of Control (IoC) container, highlighting its role in dependency injection and object instantiation. It provides examples of how to bind and resolve dependencies using Laravel's IoC container, emphasizing automatic dependency resolution for controllers. Additionally, it mentions the use of service providers and interface binding as core features of Laravel.

1. Laravels
IoC
container

2. Me, myself& I
Niklas Modess
Web architect at Nevertheless
@niklasmodess
http://www.codingswag.com

3. Deploying PHP
Applications
» Currently writing
» Deploy process for PHP
applications
» https://leanpub.com/
deploying-php-applications

4. Symfony
November Camp
» Full day of PHP/Symfony @
Scandic Grand Central
» 14th of November
» I will give a talk on
"Deploying PHP
applications"
» http://www.symfony.se/
november-camp/

5. The topic ofthistalk
is kind ofalie...“Laravels IoC container”

6. Thetruth...
The Laravelapplication
isan IoC container
class Application extends Container [...] {
[...]
}

7. Dependencyinjection
comes first

8. App::make('foo');

9. Instantiation
App::bind('foo', function()
{
return new FooBar;
});
$foo = App::make('foo'); // instance of FooBar
Or resolvethe class directly
$foo = App::make('FooBar'); // same as 'new FooBar';

10. Singleton objects
App::singleton('bar', function()
{
return new BarFoo;
});
$foo = App::make('bar'); // instance of BarFoo

11. Swapoutbinded objects
$foo = new Foo;
App::instance('foo', $foo);
» Great for testing

12. Internal
dependencies

13. Taylor magic™

14. Automatic dependencyresolving
class OrderController extends BaseController {
protected $orders;
public function __construct(OrderRepository $orders)
{
$this->orders = $orders;
}
public function getIndex()
{
$all = $this->orders->all();
return View::make('orders', compact('all'));
}
}

15. Instead of
$orderRepository = new OrderRepository;
$orderController = new OrderController($orderRepository);
We use
$orderController = App::make('OrderController');
Couldalso beachievedthisway
$orderRepository = new OrderRepository;
$orderController = App::make('OrderController', [$orderRepository]);

16. More awesome stuff
* Service providers
* Interface binding

17. Questions?