1--TEST--
2Issue #137 (DateTime(Immutable) serialization doesn't work with php 7.4)
3--SKIPIF--
4<?php
5if (!extension_loaded("msgpack")) {
6   echo "skip";
7}
8--FILE--
9<?php
10var_dump(msgpack_unpack(msgpack_pack(new DatetimeImmutable)));
11?>
12OK
13--EXPECTF--
14object(DateTimeImmutable)#%d (3) {
15  ["date"]=>
16  string(26) "%d-%d-%d %d:%d:%f"
17  ["timezone_type"]=>
18  int(%d)
19  ["timezone"]=>
20  string(%d) "%s"
21}
22OK
23