[UPHPU] buggy behavior with two foreach loops

[Richard K Miller]

On Oct 20, 2009, at 12:10 AM, Richard K Miller wrote:

> Is this a bug in PHP?
>


These reports describe the issue (though more verbosely):

http://bugs.php.net/bug.php?id=29992
http://bugs.php.net/bug.php?id=31118
http://bugs.php.net/bug.php?id=31125
http://bugs.php.net/bug.php?id=36240

Seems odd for Derick and Andi to disregard this as "expected  
behavior". The fix is to unset() the iterator value before the second  
foreach loop. (Why should that be necessary?)

<?php
$items = array('apple', 'banana', 'carrot');
print_r($items);
foreach ($items as &$item) { }
print_r($items);
unset ($item); // required
foreach ($items as $item) { }
print_r($items);