1--TEST--
2DatePeriod by-ref iterator
3--FILE--
4<?php
5$properties = [
6	'start' => new \DateTimeImmutable("2023-01-13 12:29:30"), 'end' => new \DateTimeImmutable("2023-01-16 16:49:29"), 'current' => new \DateTimeImmutable("2023-01-15 00:00:00"),
7	'interval' => DateInterval::createFromDateString("tomorrow"), 'recurrences' => 1, 'include_start_date' => true, 'include_end_date' => true,
8];
9
10$d = DatePeriod::__set_state( $properties );
11try {
12	foreach( $d as &$item )
13	{
14		echo $item->format(DateTime::ISO8601), "\n";
15	}
16	echo "OK\n";
17} catch (\Error $e) {
18	echo $e::class, ': ', $e->getMessage(), "\n";
19}
20?>
21--EXPECT--
22Error: An iterator cannot be used with foreach by reference
23