1--TEST--
2mb_convert_encoding() shouldn't leak keys
3--SKIPIF--
4<?php require 'skipif.inc'; ?>
5--FILE--
6<?php
7
8$x = "x";
9$array = ["foo" . $x => "bar"];
10mb_convert_encoding($array, 'UTF-8', 'UTF-8');
11var_dump($array);
12
13?>
14--EXPECT--
15array(1) {
16  ["foox"]=>
17  string(3) "bar"
18}
19