mapdev\FacebookMessenger\Components\Button::toArray PHP Метод

    public function toArray()
    {
        $payload_name = $this->type == ButtonType::Web || $this->type == ButtonType::AccountLink ? 'url' : 'payload';
        if ($this->type == ButtonType::AccountLink) {
            return ['type' => $this->type, 'url' => $this->payload];
        }
        if ($this->type == ButtonType::AccountUnlink) {
            return ['type' => $this->type];
        }
        if ($this->is_webview) {
            $result = ['type' => $this->type, $payload_name => $this->payload, 'title' => MessengerUtils::checkStringLengthAndEncoding($this->title, 320, 'UTF-8'), 'webview_height_ratio' => $this->webview_height_ratio];
            if ($this->is_webview_extended) {
                $result['messenger_extensions'] = true;
                if (!is_null($this->fallback_url)) {
                    $result['fallback_url'] = $this->fallback_url;
                }
            }
            return $result;
        }
        return ['type' => $this->type, $payload_name => $this->payload, 'title' => MessengerUtils::checkStringLengthAndEncoding($this->title, 320, 'UTF-8')];
    }