voku / Arrayy

    $keys = explode('.', $key);

    // Crawl through the keys

    while (count($keys) > 1) {

      $key = array_shift($keys);

      $this->array[$key] = $this->get(array(), null, $key);

      $this->array = &$this->array[$key];

    }

    // Bind final tree on the array

    $key = array_shift($keys);

    $keys = explode('.', $key);

    // Crawl though the keys

    while (count($keys) > 1) {

      $key = array_shift($keys);

      if (!$this->has($key)) {

        return false;

      }

      $this->array = &$this->array[$key];

    }

    $key = array_shift($keys);