Edit report at https://bugs.php.net/bug.php?id=63176&edit=1

 ID:                 63176
 Updated by:         larue...@php.net
 Reported by:        jrbasso at gmail dot com
 Summary:            Segmentation fault when instantiate 2 persistent PDO
                     to the same db server
 Status:             Closed
 Type:               Bug
 Package:            PDO related
 Operating System:   Ubunt 12.04.1
 PHP Version:        5.4.7
 Assigned To:        wez
 Block user comment: N
 Private report:     N

 New Comment:

bug has been fixed, will behavior like 5.3

but it's a little weird that's two different drived class will share one same 
dbh, 
and the dbh hold only one drived  class instance.

see the test script I committed: https://github.com/php/php-
src/blob/6cd6349ff8842a9356723b7b192eb3c93fb64c7e/ext/pdo_mysql/tests/bug63176.php
t

note the result are all PDO2.... 

maybe we should also add the drived class name into the persistent id? 

thanks


Previous Comments:
------------------------------------------------------------------------
[2013-06-16 14:57:04] larue...@php.net

Automatic comment on behalf of laruence
Revision: 
http://git.php.net/?p=php-src.git;a=commit;h=49e57a31659a82443b9413127f8d58a72f09ed5b
Log: Fixed bug #63176 (Segmentation fault when instantiate 2 persistent PDO to 
the same db server)

------------------------------------------------------------------------
[2013-06-14 19:31:44] jrbasso at gmail dot com

@thz, the workaround I did was to create 2 DNS names for the same DB. So PHP 
will 
think they are 2 different servers and connect twice.

------------------------------------------------------------------------
[2013-06-14 13:16:48] thz at plista dot com

Hi, we are experiencing the same error and it's preventing us from moving to 
PHP 
5.4. Are there any plans to fix this or are we going to have to live with not 
being able to derive from PDO?

We have done extensive debugging and may be able to provide some information as 
to why this happens, but due to a lack of internal knowledge of how the Zend 
engine works, we haven't been able to come up with a fix.

------------------------------------------------------------------------
[2012-09-28 13:37:49] jrbasso at gmail dot com

I tested in my PHP 5.3.15 and the issue doesn't happen. It just happen in PHP 
5.4.x.

------------------------------------------------------------------------
[2012-09-28 13:22:34] cjsaylor at gmail dot com

After looking at the patch, is denying persistent connections from derived PDO 
classes the actual proposed solution?  Not being able to extend \PDO with 
persistent connections would be a problem in many frameworks/appliances.

------------------------------------------------------------------------


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