ID: 30823
User updated by: richard dot quadling at bandvulc dot co dot uk
Reported By: richard dot quadling at bandvulc dot co dot uk
Status: Open
Bug Type: Class/Object related
Operating System: Windows XP Pro SP2
PHP Version: 5.0.2
New Comment:
My example code is nothing like the real one, but a fake to prove the
problem.
In reality, the logger is a DB connection and the __destroy, closes the
log, generates an email and submits it to another system for profiling.
What is happening is that we are getting log1 of the normal size and
then a tiny log2 full of destruction entries. Some of these entries
take the time (more DB logic and analysis) and these SHOULD be part of
the main log.
Richard.
Previous Comments:
------------------------------------------------------------------------
[2004-11-18 11:01:10] richard dot quadling at bandvulc dot co dot uk
Description:
------------
Hi.
Create Object A (a action logging class)
Create Object B (a class which allows generates logging actions).
As each method in B is called a log entry is made by using an IN and
OUT method on A.
During the shutdown, the __destroy method of A is called (which closes
the log), then, the __destroy method of B is called. This method has
the logging code in it. This then tries to call a destroyed object.
As you cannot refer to an object until it is created, you should always
destroy objects in the reverse order in which they were created.
Richard.
Reproduce code:
---------------
<?php
class A
{
public function __construct()
{
echo 'Constructing A<br />';
}
public function __destruct()
{
echo 'Destroying A<br />';
}
public function Logging($sLog)
{
echo date('r') . ' '. $sLog . '<br />';
}
}
class B
{
public function __construct()
{
$GLOBALS['objLogger']->Logging(__METHOD__ . ' ' . __FILE__ . '
' .
__LINE__);
}
public function __destruct()
{
$GLOBALS['objLogger']->Logging(__METHOD__ . ' ' . __FILE__ . '
' .
__LINE__);
}
public function Action()
{
$GLOBALS['objLogger']->Logging(__METHOD__ . ' ' . __FILE__ . '
' .
__LINE__);
}
}
$objLogger = new A();
$objAction = new B();
$objAction->Action();
?>
Expected result:
----------------
Constructing A
Thu, 18 Nov 2004 09:51:07 +0000 B::__construct D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 24
Thu, 18 Nov 2004 09:51:07 +0000 B::Action D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 34
Thu, 18 Nov 2004 09:51:07 +0000 B::__destruct D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 29
Destroying A
Actual result:
--------------
Constructing A
Thu, 18 Nov 2004 09:51:07 +0000 B::__construct D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 24
Thu, 18 Nov 2004 09:51:07 +0000 B::Action D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 34
Destroying A
Thu, 18 Nov 2004 09:51:07 +0000 B::__destruct D:\Data\Web Sites\Quick
Scripts\public_html\PHP Bug testing\Objects destroyed FIFO.php 29
------------------------------------------------------------------------
--
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