1--TEST-- 2Objects with overloaded get_properties are incompatible with ArrayObject 3--FILE-- 4<?php 5 6$ao = new ArrayObject([1, 2, 3]); 7try { 8 $ao->exchangeArray(new SplFixedArray); 9} catch (Exception $e) { 10 echo $e->getMessage(), "\n"; 11} 12var_dump($ao); 13 14?> 15--EXPECT-- 16Overloaded object of type SplFixedArray is not compatible with ArrayObject 17object(ArrayObject)#1 (1) { 18 ["storage":"ArrayObject":private]=> 19 array(3) { 20 [0]=> 21 int(1) 22 [1]=> 23 int(2) 24 [2]=> 25 int(3) 26 } 27} 28