Simple implementation of a Registry

config.yml

services:
  informationContainer:
    class:        Digibet\PartnerBundle\DependencyInjection\InformationContainer
    calls:
            - [ set, ['path', 'Symfony/web/pdf' ] ]
            # add "> /dev/null 2>/dev/null &" to use fire and forget
            - [ set, ['newsScript', '/home/xxxx/public_html/digibet/Symfony/news %s' ] ]

InformationContainer.php

<?php

namespace MyApp\MyBundle\DependencyInjection;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\Config\FileLocator;

class InformationContainer {

	protected $informations = array();

	public function set($key, $value) {
		$this->informations[$key] = $value;
	}

	public function get($key) {
		if(isset($this->informations[$key])) {
			return $this->informations[$key];
		}
		throw new \InvalidArgumentException($key . ' is not defined.');
	}
}