gistfile1.txt

<?php
namespace foo\bar;

use Aura\Marshal\Entity\MagicArrayAccessTrait;
use ArrayAccess;

class ArrayAccessEntityExample impelements ArrayAccess
{
    use MagicArrayAccessTrait;

    protected $entity_data;

    public function offsetExists($key)
    {
        return array_key_exists($key, $this->entity_data);
    }

    public function offsetGet($key)
    {
        return $this->entity_data[$key];
    }

    public function offsetSet($key, $val)
    {
        $this->entity_data[$key] = $val;
    }

    public function offsetUnset($key)
    {
        unset($this->entity_data[$key]);
    }
}