1--TEST--
2__sleep() returns properties clashing only after mangling
3--FILE--
4<?php
5class Test {
6    private $priv;
7    public function __sleep() {
8        return ["\0Test\0priv", "priv"];
9    }
10}
11$s = serialize(new Test);
12var_dump(str_replace("\0", '\0', $s));
13?>
14--EXPECTF--
15Notice: serialize(): "priv" is returned from __sleep() multiple times in %s on line %d
16string(37) "O:4:"Test":1:{s:10:"\0Test\0priv";N;}"
17