1--TEST-- 2Bug #75420.13 (Indirect modification of magic method argument) 3--FILE-- 4<?php 5class Test implements ArrayAccess { 6 public function offsetExists($x): bool { $GLOBALS["obj"] = 24; return true; } 7 public function offsetGet($x): mixed { var_dump($x); return 42; } 8 public function offsetSet($x, $y): void { } 9 public function offsetUnset($x): void { } 10} 11 12$obj = new Test; 13$name = "foo"; 14var_dump($obj[$name] ?? 12); 15var_dump($obj); 16?> 17--EXPECT-- 18string(3) "foo" 19int(42) 20int(24) 21