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In-Reply-To: <c25f8d340910211919v596d5f91ub01f6ba615192949@mail.gmail.com>
Date: Wed, 21 Oct 2009 20:40:08 -0600
Cc: internals@lists.php.net
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References: <84898698-728C-44ED-BF7A-E0E02C111F68@gmail.com> <4ADFB80B.9050207@hexon.cx> <304A7A3B-9E8D-4BA5-8C01-511090D5F236@gmail.com> <c25f8d340910211919v596d5f91ub01f6ba615192949@mail.gmail.com>
To: mm w <0xcafefeed@gmail.com>
Subject: Re: [PHP-DEV] bug when using foreach with references?
From: richardkmiller@gmail.com (Richard K Miller)

I don't follow. Is this really the intended behavior? It seems quite  
unintuitive that the original array would be modified by *empty* loops.

Suppose I create an include file that loops through $_GET variables  
with references:
foreach ($_GET as &$get) { /* empty loop */ }

Subsequent foreach() loops on $_GET would cause corruption. Seems  
dangerous.

When would this behavior be desired?

!intuitive && !desired == bug ?

Richard

On Oct 21, 2009, at 8:19 PM, mm w wrote:

> Richard, enumerator exhausted, repeat your sub-sequence again you  
> will get it
> e.g pointer and pointed
>

>> <?php
>> $items = array('apple', 'banana', 'carrot');
>> print_r($items);
>> foreach ($items as &$item) { }
>> print_r($items);
>> foreach ($items as $item) { }
>> print_r($items);