gistfile1.php

<?php

//normal way to define class
class Box {

	protected $foo;

	protected $bar;

	protected $baz;

	public function __construct(Foo $foo, Bar $bar, Baz $baz)
	{
		$this->foo = $foo;
		$this->bar = $bar;
		$this->baz = $baz;
	}
}

//my idea

//uses bindings on request
function getDependency(&$obj, $name)
{
	if(is_null($obj)) $obj = App::make($name);
	
	return $obj;
}

class Box {

	protected $foo;

	protected $bar;

	protected $baz;

	public function doSomething()
	{
		$this->getFoo()->blah();

		$this->getBar()->something();
	}

	protected function getFoo()
	{
		return getDependency($this->foo, 'Foo');
	}

	public function getBar()
	{
		return getDependency($this->bar, 'Bar');
	}

	public function getBaz()
	{
		return getDependency($this->baz, 'Baz');
	}
}