$this->data['customer_name'] ?? 'N/A', 'customer_email' => $this->data['customer_email'] ?? 'N/A', 'customer_phone' => $this->data['customer_phone'] ?? 'N/A', 'cpu' => $this->data['cpu'] ?? '-', 'ram' => $this->data['ram'] ?? '-', 'ssd' => $this->data['ssd'] ?? '-', 'os' => $this->data['os'] ?? '-', 'other_row' => !empty($this->data['other']) ? '