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--TEST--
SPL: RecursiveIteratorIterator cannot be used with foreach by reference
--FILE--
<?php
$arr = array(array(1,2));
$arrOb = new ArrayObject($arr);
$recArrIt = new RecursiveArrayIterator($arrOb->getIterator());
$recItIt = new RecursiveIteratorIterator($recArrIt);
foreach ($recItIt as &$val) echo "$val\n";
?>
--EXPECTF--
Fatal error: An iterator cannot be used with foreach by reference in %s on line %d
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