Description:
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When I execute the code, it seems that the outer foreach is executed only once. When I comment any of lines marked *, the (outer) foreach executes twice.

This bug seems to be very like to bug # 21702, but here the situation is much more strange: I do not use $b in foreaches at all! So it's very strange that the foreach behavior differs when the array was referenced sometime or not.

Thanks.

Reproduce code:
---------------
<?
$a=array("1","2");
$b=&$a;//*
foreach($a as $i){
    print($i);
    foreach($a as $p);//*
}
?>

Expected result:
----------------
12

Actual result:
--------------
1