--TEST--
SPL: ArrayIterator and foreach reference
--FILE--
<?php

$arr = array(0=>0, 1=>1, 2=>2);
$obj = new ArrayObject($arr);

foreach($obj as $ak=>&$av) {
    foreach($obj as $bk=>&$bv) {
        if ($ak==0 && $bk==0) {
            $bv = "modify";
        }
        echo "$ak=>$av - $bk=>$bv\n";
    }
}

?>
--EXPECT--
0=>modify - 0=>modify
0=>modify - 1=>1
0=>modify - 2=>2
1=>1 - 0=>modify
1=>1 - 1=>1
1=>1 - 2=>2
2=>2 - 0=>modify
2=>2 - 1=>1
2=>2 - 2=>2