1--TEST-- 2JIT BW_AND: 001 (empty string) 3--INI-- 4opcache.enable=1 5opcache.enable_cli=1 6opcache.file_update_protection=0 7--FILE-- 8<?php 9$a = []; 10$b = ""; 11$a["" & $b] *= 3; 12?> 13DONE 14--EXPECTF-- 15Warning: Undefined array key "" in %sand_001.php on line 4 16DONE 17
