1--TEST--
2foreach() with references
3--FILE--
4<?php
5
6$arr = array(1 => "one", 2 => "two", 3 => "three");
7
8foreach($arr as $key => $val) {
9    $val = $key;
10}
11
12print_r($arr);
13
14foreach($arr as $key => &$val) {
15    $val = $key;
16}
17
18print_r($arr);
19?>
20--EXPECT--
21Array
22(
23    [1] => one
24    [2] => two
25    [3] => three
26)
27Array
28(
29    [1] => 1
30    [2] => 2
31    [3] => 3
32)
33