Output

$this->get('test.service');


yeilds:

array (size=2)
  0 => string 'hello' (length=5)
  1 => string 'world' (length=5)

services.yml

    test.service:
        class: Phoenix\CRMBundle\Lib\TestService
        arguments:
            test:
                - "hello"
                - "world"

TestService.php

<?php

namespace Phoenix\CRMBundle\Lib;

class TestService
{
	public function __construct($test)
	{
		var_dump($test);
	}
}