PHP da OOP da Assotsiativ Massiv Elementidan Xususiyat Nomi

Keling, endi obyekt xususiyatiga assotsiativ massiv elementidan olingan nom bilan qanday murojaat qilishni ko'ramiz. Faraz qilaylik, bizda quyidagi User klassi mavjud:

php<?php
  class User
  {
    public $name;
    public $surn;
    
    public function __construct($name, $surn)
    {
      $this->name = $name;
      $this->surn = $surn;
    }
  }
?>

Ushbu klassning obyektini yaratamiz:

php<?php
  $user = new User('john', 'smit');
?>

Faraz qilaylik, xususiyatlar massivi berilgan:

php<?php
  $props = ['prop1' => 'name', 'prop2' => 'surn'];
?>

Obyekt xususiyatiga murojaat qilamiz, uning nomi bizning massivimizning elementida saqlanadi:

php<?php
  echo $user->{$props['prop1']}; // 'john' ni chiqaradi
?>

php<?php
  class Employee
  {
    public $name;
    public $salary;
    public $position;
    
    public function __construct($name, $salary, $position)
    {
      $this->name = $name;
      $this->salary = $salary;
      $this->position = $position;
    }
  }
?>

php<?php
  $arr = [
    'prop1' => 'name',
    'prop2' => 'salary', 
    'prop3' => 'position'
  ];
?>