1--TEST-- 2Bug #39297 (Memory corryption because of indirect modification of overloaded array) 3--FILE-- 4<?php 5function compareByRef(&$first, &$second) { 6 return $first === $second; 7} 8 9class MyTree implements ArrayAccess { 10 public $parent; 11 public $children = array(); 12 13 public function offsetExists($offset): bool { 14 } 15 16 public function offsetUnset($offset): void { 17 } 18 19 public function offsetSet($offset, $value): void { 20 echo "offsetSet()\n"; 21 $cannonicalName = strtolower($offset); 22 $this->children[$cannonicalName] = $value; 23 $value->parent = $this; 24 } 25 26 public function offsetGet($offset): mixed { 27 echo "offsetGet()\n"; 28 $cannonicalName = strtolower($offset); 29 return $this->children[$cannonicalName]; 30 } 31 32} 33 34$id = 'Test'; 35 36$root = new MyTree(); 37$child = new MyTree(); 38$root[$id] = $child; 39 40var_dump(compareByRef($root[$id], $child)); 41?> 42--EXPECT-- 43offsetSet() 44offsetGet() 45bool(true) 46
