1--TEST-- 2JIT ASSIGN_OP: 002 3--INI-- 4opcache.enable=1 5opcache.enable_cli=1 6opcache.file_update_protection=0 7--FILE-- 8<?php 9class Test { 10 public ?string $prop = "0"; 11} 12function test() { 13 $obj = new Test; 14 $ref =& $obj->prop; 15 var_dump($ref &= 1); 16} 17test(); 18?> 19--EXPECT-- 20string(1) "0"