PHP :: Bug #44364 :: Access Violation when trying to access statement

Bug #44364	Access Violation when trying to access statement
Submitted:	2008-03-07 17:31 UTC	Modified:	2008-03-28 01:00 UTC
From:	johnw at litchfordgroup dot com	Assigned:	andrey (profile)
Status:	No Feedback	Package:	MySQLi related
PHP Version:	5.2.5	OS:	Windows 2003 Server
Private report:	No	CVE-ID:	None

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[2008-03-07 17:31 UTC] johnw at litchfordgroup dot com

Description:
------------
I am trying to take advantage of OOP, I have one function that I can pass a sql query to and parameters to bind to. The function should return the statement object so I can then use it in the calling functon.

In the example, I am using a global variable to the class. I would rather the function return the statement object but I was getting this same error. So I tried it as a global variable with no luck.

Reproduce code:
---------------
http://www.litchfordgroup.com/example.txt

Expected result:
----------------
returns statement object so that I can bind the results and access the values.

Actual result:
--------------
PHP has encountered an Access Violation at 0F18165A

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[2008-03-07 17:39 UTC] felipe@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php for *NIX and
http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.

[2008-03-07 21:46 UTC] johnw at litchfordgroup dot com

I cannot get this debug to work. I followed the steps in your link. The instructions are missing a step (see screen 4 below).

Everything seems to be setup right, but when I run the php file that fails, it does nothing.

[2008-03-07 21:46 UTC] johnw at litchfordgroup dot com

Here are the screen shots of my debugging tool configuration.

http://www.litchfordgroup.com/screen1.jpg

[2008-03-07 21:47 UTC] johnw at litchfordgroup dot com

http://www.litchfordgroup.com/screen2.jpg
http://www.litchfordgroup.com/screen3.jpg

[2008-03-07 21:47 UTC] johnw at litchfordgroup dot com

http://www.litchfordgroup.com/screen4.jpg
http://www.litchfordgroup.com/screen5.jpg
http://www.litchfordgroup.com/screen6.jpg

[2008-03-08 20:24 UTC] johnw at litchfordgroup dot com

Please provide an update on performing the backtrace. This issue is preventing me from moving forward on my project.

[2008-03-10 16:26 UTC] johnw at litchfordgroup dot com

Seriously a reply would be much appreciated!

[2008-03-20 16:14 UTC] andrey@php.net

You are using bind_param in a wrong way. Every call to bind_param() unbinds the previous variables. Thus all parameter variables to be bound should be bound in one call to bind_param. The same is valid also for bind_result. In your case it doesn't matter much, as you have only one parameter.
Can you provide that pr_get_list_data() function from mysql. If it contains private information you can send it over email to my address and I try to reproduce the problem.

Thanks,
Andrey

[2008-03-28 01:00 UTC] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

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