Abstrakt sinfdan foydalanadigan nusxa yaratishni qanday amalga oshirish mumkin?

PHPda abstrakt sinf to'g'ridan-to'g'ri instansiya qilinmaydi. Abstrakt sinfni ishlatadigan obyekt yaratish uchun, ota sinfning barcha abstrakt metodlarini amalga oshiradigan voris sinf yaratish va keyin bu voris sinfning nusxasini yaratish kerak.

Misol:

abstract class Animal {
    abstract public function makeSound();
}

class Dog extends Animal {
    public function makeSound() {
        return "Gav!";
    }
}

$dog = new Dog();
echo $dog->makeSound(); // Chiqish: Gav!

Shu tarzda, nusxa olish konkret sinf orqali amalga oshiriladi, u abstrakt sinfni kengaytiradi va uning metodlarini amalga oshiradi.