PHP-dä OOP-da assosiativ massiw elementinden alnan atlandyryjylyk hasiyetine ýüzlenmek

Indi bolsa, obýektiň hasiýetine assosiativ massiw elementinden alnan at bilen nädip ýüzlenmelidigine göz aýlanyň. Aşakda görkezilen ýaly User klasymyz bar bolsun:

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

Bu klassyň obýektini döredeliň:

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

Hasiýetleriň massiw berlen bolsun:

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

Obýektiň, ady massiwimiziň elementinde saklanýan hasiýetine ýüzleneris:

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

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'
  ];
?>