Bug #53289 [Opn->Fbk]: about __destruct

From: Date: Wed, 10 Nov 2010 22:37:44 +0000
Subject: Bug #53289 [Opn->Fbk]: about __destruct
References: 1  Groups: php.bugs 
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Edit report at http://bugs.php.net/bug.php?id=53289&edit=1

 ID:                 53289
 Updated by:         felipe@php.net
 Reported by:        asersz at gmail dot com
 Summary:            about __destruct
-Status:             Open
+Status:             Feedback
 Type:               Bug
-Package:            Unknown/Other Function
+Package:            Scripting Engine problem
 Operating System:   Windows 7
 PHP Version:        5.2.14
 Block user comment: N

 New Comment:

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.

I can't reproduce any problem with this test script.


Previous Comments:
------------------------------------------------------------------------
[2010-11-10 09:25:36] asersz at gmail dot com

Description:
------------
I am not good at english.. 

Read the following code ..

An error occurs when you run it..
(there will be white-screen in my codes.)



Chinese :
如果你能看懂中文.那最好不过了.
上面的代码我认为__destruct被继承之后,
会导致下面两个类的对象在释放时出现无法找到static
$childs的错误.
但是在我的代码里面他确实没有出现这个错误,
反而运行了很久之后出现了白屏.
看上去很像一个死循环.


Test script:
---------------
error_reporting(E_ALL);
ini_set('display_errors', 'on');

abstract class Father {
   private static $childs = array();

   public static function getChild( $child ) {
       if (!array_key_exists("$child", self::$childs)) {
           self::$childs["$child"] = new $child;
       }
       return self::$childs["$child"];
   }

   public function __destruct() {
       foreach (self::$childs as $i => $child) {
            self::$childs[$i] = $child = null;
       }
   }
}

class Child1 extends Father {}
class Child2 extends Father {}

$child1 = Father::getChild('Child1');
$child2 = Father::getChild('Child2');



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



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