#33314 [Com]: Child class variable change not propogated during function call

[andrew at azarov dot com]

ID: 33314
Comment by: andrew at azarov dot com
Reported By: gregory dot szorc at case dot edu
Status: No Feedback
Bug Type: Class/Object related
Operating System: Linux (multiple)
PHP Version: 5CVS-2005-06-12
New Comment:

class.php:
<?
class Test
{
var $Dynamic = Array();
function Start()
{
$Dynamic = Array("test"=>"hope")
$this->$Dynamic = $Dynamic;
}
function GetArray()
{
return $this->Dynamic;
}
}
?>
test.php:
<?
require class.php;
$file = new Test();
$file->Start();
print_r($file->Dynamic); // Will result in 'Array()'
$s = $file->GetArray(); // Will result in 'Fatal error: Cannot access
empty property'
print_r($s)
?>


Previous Comments:
------------------------------------------------------------------------

[2005-06-23 01:00:04] 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".

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

[2005-06-15 18:14:28] [email]tony2001@php.net[/email]

Gregory, if you provide an example (even relatively big) it would be
MUCH easier for us to understand what are you talking about (and to fix
it too).
Please cook a script (okay, let it be BIG script), put it somewhere on
the Net (no SVN and other exotic things please, just a plain HTTP) and
give us the link.
Thanks in advance.

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

[2005-06-15 16:11:59] gregory dot szorc at case dot edu

I have tried to recreate the problem by recreating the basic
class hierarchy that exists in my project. Unfortunately, I
have been unable to duplicate. I would gladly try and debug
things myself, but I have no knowledge regarding debugging
core PHP.

The problem occurs in BaseLayout.php. It is reproducable
through tests/iCal_create.php. The test program doesn't
even involve a lot of the classes. Considering that the
problem is an object reference being lost/ignored as it is
passed back to a function, I would think this would be a
relatively easy problem to debug. Who knows.

If someone could provide instructions for how to debug this
problem, I would attempt to do it myself.

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

[2005-06-15 15:30:03] [email]sniper@php.net[/email]

We _REALLY_ need a short reproducing script. We don't have time to go
through hundreds of lines of code..


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

[2005-06-14 16:58:33] gregory dot szorc at case dot edu

As mentioned in the orignal post, I have not been able to
reproduce the problem outside of the project from which I am
working. Believe me, I tried. Read [url]http://zorro.case.edu/[/url]
viewcvs/php_classes/File_iCal/trunk/File/iCal/
BaseComponent.php?rev=119&view=markup around line 234 for a
comment and the actual code that causes the bug to trigger.

Given the way that the problem can be "solved," there is
obviously a bug with the class support. Unfortunately, I
can't reproduce it outside of the PEAR project on which I am
working.

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

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
[url]http://bugs.php.net/33314[/url]

--
Edit this bug report at [url]http://bugs.php.net/?id=33314&edit=1[/url]

[xstex2 at hotmail dot com]

ID: 33314
Comment by: xstex2 at hotmail dot com
Reported By: gregory dot szorc at case dot edu
Status: No Feedback
Bug Type: Class/Object related
Operating System: Linux (multiple)
PHP Version: 5CVS-2005-06-12
New Comment:

Any update on this issue?


Previous Comments:
------------------------------------------------------------------------

[2006-12-14 07:55:17] andrew at azarov dot com

class.php:
<?
class Test
{
var $Dynamic = Array();
function Start()
{
$Dynamic = Array("test"=>"hope")
$this->$Dynamic = $Dynamic;
}
function GetArray()
{
return $this->Dynamic;
}
}
?>
test.php:
<?
require class.php;
$file = new Test();
$file->Start();
print_r($file->Dynamic); // Will result in 'Array()'
$s = $file->GetArray(); // Will result in 'Fatal error: Cannot access
empty property'
print_r($s)
?>

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

[2005-06-23 01:00:04] 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".

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

[2005-06-15 18:14:28] [email]tony2001@php.net[/email]

Gregory, if you provide an example (even relatively big) it would be
MUCH easier for us to understand what are you talking about (and to fix
it too).
Please cook a script (okay, let it be BIG script), put it somewhere on
the Net (no SVN and other exotic things please, just a plain HTTP) and
give us the link.
Thanks in advance.

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

[2005-06-15 16:11:59] gregory dot szorc at case dot edu

I have tried to recreate the problem by recreating the basic
class hierarchy that exists in my project. Unfortunately, I
have been unable to duplicate. I would gladly try and debug
things myself, but I have no knowledge regarding debugging
core PHP.

The problem occurs in BaseLayout.php. It is reproducable
through tests/iCal_create.php. The test program doesn't
even involve a lot of the classes. Considering that the
problem is an object reference being lost/ignored as it is
passed back to a function, I would think this would be a
relatively easy problem to debug. Who knows.

If someone could provide instructions for how to debug this
problem, I would attempt to do it myself.

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

[2005-06-15 15:30:03] [email]sniper@php.net[/email]

We _REALLY_ need a short reproducing script. We don't have time to go
through hundreds of lines of code..


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

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
[url]http://bugs.php.net/33314[/url]

--
Edit this bug report at [url]http://bugs.php.net/?id=33314&edit=1[/url]

[confins_de_l_univers at yahoo dot fr]

ID: 33314
Comment by: confins_de_l_univers at yahoo dot fr
Reported By: gregory dot szorc at case dot edu
Status: No Feedback
Bug Type: Class/Object related
Operating System: Linux (multiple)
PHP Version: 5CVS-2005-06-12
New Comment:

I think it's a typo error.

In the Start() method, he use :
$this->$Dynamic = $Dynamic;

but he should use :
$this->Dynamic = $Dynamic;

so $this->Dynamic is not set when he call GetArray() method


Previous Comments:
------------------------------------------------------------------------

[2007-02-06 01:08:22] xstex2 at hotmail dot com

Any update on this issue?

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

[2006-12-14 07:55:17] andrew at azarov dot com

class.php:
<?
class Test
{
var $Dynamic = Array();
function Start()
{
$Dynamic = Array("test"=>"hope")
$this->$Dynamic = $Dynamic;
}
function GetArray()
{
return $this->Dynamic;
}
}
?>
test.php:
<?
require class.php;
$file = new Test();
$file->Start();
print_r($file->Dynamic); // Will result in 'Array()'
$s = $file->GetArray(); // Will result in 'Fatal error: Cannot access
empty property'
print_r($s)
?>

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

[2005-06-23 01:00:04] 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".

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

[2005-06-15 18:14:28] [email]tony2001@php.net[/email]

Gregory, if you provide an example (even relatively big) it would be
MUCH easier for us to understand what are you talking about (and to fix
it too).
Please cook a script (okay, let it be BIG script), put it somewhere on
the Net (no SVN and other exotic things please, just a plain HTTP) and
give us the link.
Thanks in advance.

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

[2005-06-15 16:11:59] gregory dot szorc at case dot edu

I have tried to recreate the problem by recreating the basic
class hierarchy that exists in my project. Unfortunately, I
have been unable to duplicate. I would gladly try and debug
things myself, but I have no knowledge regarding debugging
core PHP.

The problem occurs in BaseLayout.php. It is reproducable
through tests/iCal_create.php. The test program doesn't
even involve a lot of the classes. Considering that the
problem is an object reference being lost/ignored as it is
passed back to a function, I would think this would be a
relatively easy problem to debug. Who knows.

If someone could provide instructions for how to debug this
problem, I would attempt to do it myself.

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

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
[url]http://bugs.php.net/33314[/url]

--
Edit this bug report at [url]http://bugs.php.net/?id=33314&edit=1[/url]