Future::inspect PHP Méthode

    public function inspect()
    {
        switch ($this->state) {
            case self::PENDING:
                return array('state' => 'pending');
            case self::FULFILLED:
                return array('state' => 'fulfilled', 'value' => $this->value);
            case self::REJECTED:
                return array('state' => 'rejected', 'reason' => $this->reason);
        }
    }