PHP da OOP da Meros Olishda Privat Xususiyatlar

Privat xususiyatlar meros olinmaydi. Ammo voris ular bilan ota-onaning ommaviy usullari orqali manipulyatsiya qilishi mumkin. Keling, amalda ko'rib chiqaylik. Aytaylik, bizda quyidagi ota-ona sinfi mavjud privat xususiyat va uning getter va setter bilan:

php<?php
  class User {
    private $name;
    
    public function setName($name) {
      $this->name = $name;
    }
    public function getName() {
      return $this->name;
    }
  }
?>

Aytaylik, ota-onadan quyidagi voris meros qoladi:

php<?php
  class Student extends User {
    
  }
?>

Keling, vorisning ob'ektini yaratamiz:

php<?php
  $student = new Student;
?>

Keling, uning privat xususiyatini yozish uchun ota-onaning usulidan foydalanamiz:

php<?php
  $student->setName('john');
?>

Keling, uning privat xususiyatini o'qish uchun ota-onaning usulidan foydalanamiz:

php<?php
  $name = $student->getName();
  echo $name;
?>

Задание 1

Quyidagi ota-ona sinfi berilgan:

php<?php
  class User {
    private $name;
    private $surn;
    
    public function setName($name) {
      $this->name = $name;
    }
    public function getName() {
      return $this->name;
    }
    
    public function setSurn($surn) {
      $this->surn = $surn;
    }
    public function getSurn() {
      return $this->surn;
    }
  }
?>

Employee sinfini yarating, bu ota-onadan meros oladi.

Задание 2

Employee sinfining ob'ektini yarating va meros qilib olingan setter va getter larni chaqiring.

Задание 3

Employee sinfida quyidagi usulni bajaring:

php<?php
  public function getFull() {
    return $this->name . ' ' . $this->surn;
  }
?>

Usul kodining xatolikka olib kelishiga ishonch hosil qiling.