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Request #60024 Do not keep last element treated by foreach referenced
Submitted: 2011-10-09 21:09 UTC Modified: 2012-02-07 02:38 UTC
Votes:1
Avg. Score:4.0 ± 0.0
Reproduced:0 of 1 (0.0%)
From: chealer at gmail dot com Assigned:
Status: Duplicate Package: Scripting Engine problem
PHP Version: 5.3.8 OS:
Private report: No CVE-ID: None
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 [2011-10-09 21:09 UTC] chealer at gmail dot com 
Description:
------------
As explained on http://ca.php.net/manual/en/control-structures.foreach.php :

Warning

Reference of a $value and the last array element remain even after the foreach loop. It is recommended to destroy it by unset().


In my opinion, PHP shouldn't keep the last element referenced by default, but at least, please provide a syntax which will not keep it. The current situations causes bugs like https://bugs.php.net/bug.php?id=49386

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 [2012-02-06 00:47 UTC] DeveloperGuy2008 at yahoo dot com 
Please fix this. It creates a lot of hard to debug bugs.
 [2012-02-06 00:53 UTC] aharvey@php.net
-Status: Open +Status: Duplicate
 [2012-02-06 00:53 UTC] aharvey@php.net 
This has previously been discussed and rejected, due to users relying both on 
PHP's lack of block scope and foreach's by-reference syntax. (Sometimes both at 
once, unfortunately.)

Duplicate of bug #29992, bug #47388, bug #54189, bug #50485, and probably a bunch 
of others.
 [2012-02-06 22:24 UTC] chealer at gmail dot com 
Could the discussion be linked to?

This is not a duplicate of any of the reports indicated. The reports indicated are reports of application bugs as PHP bugs, which are therefore invalid. This report is asking to change PHP, in order to avoid such application bugs.
 [2012-02-07 00:10 UTC] aharvey@php.net 
Sure, it's come up on the mailing list a few times, but the one I was thinking of 
specifically is: http://comments.gmane.org/gmane.comp.php.devel/59471
 [2012-02-07 02:38 UTC] chealer at gmail dot com 
Thank you. I read the discussion once, but I didn't see where it rejects this. Could the rejections be quoted or pointed more specifically?
 
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