PHP da OOP da Boshqa Ob'ekt Xususiyat Nomiga Murojaat

Xususiyat nomi hatto boshqa ob'ektning xususiyati ham bo'lishi mumkin. Faraz qilaylik, bizda quyidagi User klassi mavjud:

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

Ushbu klassning ob'ektini yaratamiz:

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

Faraz qilaylik, shuningdek, bizda Prop klassi mavjud bo'lib, uning value xususiyatida xususiyat nomi saqlanadi:

<?php
	class Prop
	{
		public $value;
		
		public function __construct($value)
		{
			$this->value = $value;
		}
	}
?>

Ushbu klassning ob'ektini yaratamiz:

<?php
	$prop = new Prop('name'); 
?>

Endi ushbu ob'ekt yordamida foydalanuvchi ismini chiqaramiz:

<?php
	echo $user->{$prop->value}; // 'john' ni chiqaradi
?>

Quyidagi klass berilgan:

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

Shuningdek, quyidagi klass berilgan:

<?php
	class Data
	{
		public $prop1 = 'name';
		public $prop2 = 'salary';
		public $prop3 = 'position';
	}
?>

Employee ob'ektining xususiyatlarini Data ob'ekti orqali chiqaring.