ContainerAdapter.php

<?php

namespace Sensio\Bridge\Phpmig;

use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * The ContainerAdapter allows the Symfony DIC to be used with phpmig. Phpmig is the tool that's used for executing
 * migrations on the application and expects a service container that implements \ArrayAccess. This is achieved by
 * wrapping Symfony's DIC with an adapter that implements \ArrayAccess and proxies to the DIC.
 *
 * @package Sensio\Bridge\Phpmig
 */
class ContainerAdapter implements \ArrayAccess
{
    /** @var ContainerInterface */
    private $dic;

    /**
     * @param ContainerInterface $container
     */
    public function __construct(ContainerInterface $container)
    {
        $this->dic = $container;
    }

    /**
     * @param mixed $offset
     * @return bool
     */
    public function offsetExists($offset)
    {
        return $this->dic->has($offset);
    }

    /**
     * @param mixed $offset
     * @return mixed|object
     */
    public function offsetGet($offset)
    {
        return $this->dic->get($offset);
    }

    /**
     * @param mixed $offset
     * @param mixed $value
     */
    public function offsetSet($offset, $value)
    {
        $this->dic->set($offset, $value);
    }

    /**
     * @param mixed $offset
     * @throws \RuntimeException
     */
    public function offsetUnset($offset)
    {
        throw new \RuntimeException('Symfony DIC does not support the removal of services.');
    }
}