'', 'price' => 0, 'status' => STATUS['AVAILABLE'], ]; public function __construct(array|null $data = null) { parent::__construct($data); } //기본기능용 public function getCustomTitle(mixed $title = null): string { return sprintf("%s %s원", $title ? $title : $this->getTitle(), number_format($this->getPrice())); } final public function getPrice(): int { return $this->attributes['price'] ?? 0; } }