1--TEST--
2JIT ASSIGN_DIM_OP: Undefined variable variation
3--INI--
4opcache.enable=1
5opcache.enable_cli=1
6opcache.file_update_protection=0
7--FILE--
8<?php
9$a = [];
10$a[] &= $b;
11?>
12--EXTENSIONS--
13opcache
14--EXPECTF--
15Warning: Undefined variable $b in %s on line %d
16