Primer korišćenja IoC containera

injection3.php

<?php
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;


class Engine
{
  private $cubic;
	
	/**
	 * Private construct
	 * @param int $cubic
	 */
	private function __construct($cubic)
	{
		$this->cubic = $cubic;
	}
	
	/**
	 * Factory method
	 * @param int $cubic
	 */
	static public function factory($cubic)
	{
		return new self($cubic);
	}
}


$container = new ContainerBuilder();

$container->setParameter('engine.class', '\\Model\\Engine');

$container->register('my.tractor', '\\Model\\Tractor')
->addMethodCall('setEngine', array(new Reference('my.engine')));	

$container->setDefinition('my.engine', new Definition('%engine.class%'))
->addArgument(1800)
->setFactoryClass('%engine.class%')
->setFactoryMethod('factory');