--TEST--
Bug GH-10747 (Private fields in serialized DateTimeImmutable objects throw)
--INI--
date.timezone=UTC
--FILE--
<?php
class I extends DateTimeImmutable
{
	private   int $var1 = 1;
	private       $var2 = 0;
	protected int $var3 = 3;
	protected     $var4;

	function __construct()
	{
		parent::__construct();
		$this->var2 = 2;
		$this->var4 = 4;
	}
}

$i = new I;
$s = serialize($i);
$u = unserialize($s);

var_dump($i, str_replace(chr(0), '!', $s), $u);
?>
--EXPECTF--
object(I)#1 (7) {
  ["var1":"I":private]=>
  int(1)
  ["var2":"I":private]=>
  int(2)
  ["var3":protected]=>
  int(3)
  ["var4":protected]=>
  int(4)
  ["date"]=>
  string(%d) "%s"
  ["timezone_type"]=>
  int(3)
  ["timezone"]=>
  string(3) "UTC"
}
string(%d) "O:1:"I":7:{s:4:"date";s:%d:"%s";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";s:7:"!I!var1";i:1;s:7:"!I!var2";i:2;s:7:"!*!var3";i:3;s:7:"!*!var4";i:4;}"
object(I)#2 (7) {
  ["var1":"I":private]=>
  int(1)
  ["var2":"I":private]=>
  int(2)
  ["var3":protected]=>
  int(3)
  ["var4":protected]=>
  int(4)
  ["date"]=>
  string(%d) "%s"
  ["timezone_type"]=>
  int(3)
  ["timezone"]=>
  string(3) "UTC"
}