1--TEST--
2JIT ASSIGN_DIM_OP: Cyclic dependency
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.file_update_protection=0
7--FILE--
8<?php
9$a = null;
10$a[] .= $a;
11var_dump($a);
12?>
13--EXPECT--
14array(1) {
15  [0]=>
16  string(0) ""
17}
18