#27421 [Com]: mbstring.func_overload set in .htaccess becomes global

From: Date: Tue, 10 Jun 2008 08:39:42 +0000
Subject: #27421 [Com]: mbstring.func_overload set in .htaccess becomes global
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-125631@lists.php.net to get a copy of this message 
 ID:               27421
 Comment by:       future at shiny dot co dot il
 Reported By:      php at strategma dot bg
 Status:           Assigned
 Bug Type:         mbstring related
 Operating System: Slackware 9.1 kernel: 2.4.22
 PHP Version:      4.3.4
 Assigned To:      hirokawa
 New Comment:

Oops, my mistake. David's patch DOES solve the issue. (I just forgot to
rebuild the module :)


Previous Comments:
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[2008-06-10 02:10:56] future at shiny dot co dot il

David, unfortunately your patch doesn't seem to solve the problem.

Furthermore, on my system, strlen never seems to be overridden
(mb_orig_strlen never exists) while substr always remains overridden
(mb_orig_substr always exists).

Are you sure this shutdown sequence is even being run?

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[2008-03-19 18:37:03] felipe@php.net

Assigned to maintainer.

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[2008-03-19 18:28:25] david at dfoerster dot de

> It is not recommended to use the function overloading option in 
> the per-directory context, because it's not confirmed yet to be 
> stable enough in a production environment and may lead to 
> undefined behaviour. 

Once the patch is applied this notice can probably be removed from 
the documentation.

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[2008-03-19 18:08:46] david at dfoerster dot de

Hi,

this patch fixes the problem (didn't find a way to attach a patch 
here):
http://www.dfoerster.de/misc/php-27421.diff

The problem was that the while loop in PHP_RSHUTDOWN_FUNCTION would 
terminate on the first function that was not overloaded. With a 
settin of 2, the str* functions would never be restored, because the 
mail function was not overloaded.

The patch changes the behaviour to be similar to the loop in 
PHP_RINIT_FUNCTION.

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[2008-03-15 13:41:58] rnbarra at yaho dot copm

sopa

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the rest of the comments, please view the bug report online at
    http://bugs.php.net/27421

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