What's dependency injection(DI)?

Just look at the article and watch that awesome video: http://blog.ircmaxell.com/2013/01/dependency-injection-programming-with.html

How do i register items(services)?

If the class does not have any deps- just skip this step!!!

First of all you have to register all dependencies, but keep in mind that:

class App
{
    // you can use this trait and implement getInjectables()
    // that returns associative array with named params that
    // could not be skipped or added with defined default values
    use Pyha\DI\Injectable;

    public function getInjectables()
    {
        return [
            'stringHere' => "hello world!"
        ];
    }

    /**
     * @param string $stringHere
     */
    public function __construct(AnyClassHere $thing, $stringHere)
    {

    }
}

class Foo
{
    public function __construct(App $app)
    {

    }
}
class Bar extends Foo { }

// i would like to get it via DI Factory
class WeWannaGet
{
    public function __construct(Bar $bar)
    {

    }
}

// in order to get this working we need... //

// 1. register only top dependency
Pyha\DI\Factory::getInstance()->register(
    new App(new AnyClassHere(), 'string here')
);
// or
Pyha\DI\Factory::getInstance()->register(
        Pyha\DI\Factory::getInstance()->get('App')
    );
// or (if app does not use injectable trait or do not get named param via getInjectables() method)
Pyha\DI\Factory::getInstance()->register(
            Pyha\DI\Factory::getInstance()->get('App', ['stringHere' => "hello world!"])
        );

// that u can use
Pyha\DI\Factory::getInstance()->get('WeWannaGet'); // to get instance only once, just what an singleton does
Pyha\DI\Factory::getInstance()->create('WeWannaGet'); // to create new instance each time

To register aliases use addAlias() Factory method.

NOTE: if as a service parameter to the register method is provided an object by default are registered several service aliases. This are:

- All Interfaces names implemented
- All parent classes from extension tree
- All Traits used

If you do not wannt to register this aliases, take a look at the method prototype:

public function register($name,
                         	 $service,
                         	 $registerSelfAsAlias = true,
                         	 $registerInterfacesAsAliases = true,
                         	 $registerParentsAsAliases = true);

Services ca be objects, closures, string(classes names)

Loading Library

If you are not using Composer you may add to autoloader the lib path or even include the files manualy

Installing via Composer

To install it via composer just use following command:

$ composer.phar install