Is an object needed in this example?

Question

PHP

class Book
{
  public $name;
  public $price;

  public function __construct(string $name, int $price){
      $this->name = $name;
      $this->price = $price;
  }
}


$a = new Book('Название', 1000);


$stmt = $db->prepare("INSERT INTO `books` (`name`, `price`) VALUE (?, ?)");
$stmt->execute(array($a->name, $a->price));

Not quite clear. Made Class Book. Filled it up. And what should I do with it next? Transfer to the class an intermediary between Him and the database and save inside?

Answer 1

What's the alternative?
Working with arrays and hoping that everyone who works with your code will remember all the fields of all objects and never make a mistake in their name?
In this example, this seems redundant, but such code will be easier to maintain and extend in the future.