User Object and JsonUser Object

UserObjectAndJsonUserObject.php

<?php
class User {
	private $name;
	private $email;
	private $facebookId;

	public function __construct($name, $email, $facebookId) {
		$this->name = $name;
		$this->email = $email;
		$this->facebookId = $facebookId;
	}

	public function getName() {
		return $this->name;
	}
}

class JsonUser implements JsonSerializable {
	private $name;

	public function __construct($name) {
		$this->name = $name;
	}

	public function jsonSerialize() {
		return [
			"name" => $this->name,
		];
	}
}

$user = new User("shaked", "[email protected]", 12345);
doSomethingWith($user);
doSomethingElseWith($user);

echo json_encode(new JsonUser($user->getName()), JSON_PRETTY_PRINT);