--TEST--
Bug #41691 (ArrayObject::exchangeArray hangs Apache)
--SKIPIF--
<?php if (!extension_loaded("spl")) print "skip"; ?>
--FILE--
<?php

class A extends ArrayObject {
	public function __construct($dummy, $flags) {
		parent::__construct($this, $flags);
	}
	public $a;
	public $b;
	public $c;
}

$a = new A(null, ArrayObject::ARRAY_AS_PROPS );
var_dump($a->exchangeArray(array('a'=>1,'b'=>1,'c'=>1)));

echo "Done\n";
?>
--EXPECTF--	
array(3) {
  ["a"]=>
  NULL
  ["b"]=>
  NULL
  ["c"]=>
  NULL
}
Done
--UEXPECTF--
array(3) {
  [u"a"]=>
  NULL
  [u"b"]=>
  NULL
  [u"c"]=>
  NULL
}
Done