1--TEST--
2Bug #72543.1 (different references behavior comparing to PHP 5)
3--FILE--
4<?php
5$arr = [];
6$arr[0] = null;
7$ref =& $arr[0];
8unset($ref);
9$arr[0][0] = $arr[0];
10var_dump($arr);
11?>
12--EXPECT--
13array(1) {
14 [0]=>
15 array(1) {
16 [0]=>
17 NULL
18 }
19}
20
