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To: Richard K Miller <richardkmiller@gmail.com>
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Subject: Re: [PHP-DEV] bug when using foreach with references?
From: jille@hexon.cx (Jille Timmermans)

Richard K Miller schreef:
> Is this a bug in PHP?
No
>
> <?php
> $items = array('apple', 'banana', 'carrot');
> print_r($items);
> foreach ($items as &$item) { }
$item is now a reference to the last element of $items.
> print_r($items);
> foreach ($items as $item) { }
And here, the foreach loop writes to $item for each element: thus
assiging that value to the last element of $items.
> print_r($items);
> ?>
>
> // Output:
> Array
> (
>      [0] => apple
>      [1] => banana
>      [2] => carrot
> )
> Array
> (
>      [0] => apple
>      [1] => banana
>      [2] => carrot
> )
> Array
> (
>      [0] => apple
>      [1] => banana
>      [2] => banana
> )
>
> Two bananas in the last set?! Not what I expected.
You can fix your bug by using 'unset($item);' after the second foreach-loop.

-- Jille
>
> Richard
>
>