1--TEST--
2Generators can also yield keys
3--FILE--
4<?php
5
6function reverse(array $array) {
7    end($array);
8    while (null !== $key = key($array)) {
9        yield $key => current($array);
10        prev($array);
11    }
12}
13
14$array = [
15    'foo' => 'bar',
16    'bar' => 'foo',
17];
18
19foreach (reverse($array) as $key => $value) {
20    echo $key, ' => ', $value, "\n";
21}
22
23?>
24--EXPECT--
25bar => foo
26foo => bar
27