kodus / file-cache

        return $success;

    }

    public function getMultiple($keys, $default = null)

    {

        if (! is_array($keys) && ! $keys instanceof Traversable) {

            throw new InvalidArgumentException("keys must be either of type array or Traversable");

        }

        $values = [];

        foreach ($keys as $key) {

            $values[$key] = $this->get($key) ?: $default;

        }

        return $values;

    }

    public function setMultiple($values, $ttl = null)

    {

        return $ok;

    }

    public function deleteMultiple($keys)

    {

        if (! is_array($keys) && ! $keys instanceof Traversable) {

            throw new InvalidArgumentException("keys must be either of type array or Traversable");

        }

        $ok = true;

        foreach ($keys as $key) {

            $this->validateKey($key);

            $ok = $ok && $this->delete($key);

        }

        return $ok;

    }

    public function has($key)

    {