1--TEST-- 2SPL: ArrayIterator and foreach by reference 3--FILE-- 4<?php 5 6$ar = new ArrayObject(array(1)); foreach($ar as &$v) var_dump($v); 7$ar = new ArrayIterator(array(2)); foreach($ar as &$v) var_dump($v); 8$ar = new RecursiveArrayIterator(array(3)); foreach($ar as &$v) var_dump($v); 9 10class ArrayIteratorEx extends ArrayIterator 11{ 12 function current(): mixed 13 { 14 return ArrayIterator::current(); 15 } 16} 17 18$ar = new ArrayIteratorEx(array(4)); foreach($ar as $v) var_dump($v); 19$ar = new ArrayIteratorEx(array(5)); foreach($ar as &$v) var_dump($v); 20 21?> 22===DONE=== 23--EXPECTF-- 24int(1) 25int(2) 26int(3) 27int(4) 28 29Fatal error: Uncaught Error: An iterator cannot be used with foreach by reference in %s:%d 30Stack trace: 31#0 {main} 32 thrown in %s on line %d 33
