Bug #51896 [Opn->Bgs]: class a {function __construct(){new a();}} new a(); # - kills php

From: Date: Sun, 23 May 2010 22:37:26 +0000
Subject: Bug #51896 [Opn->Bgs]: class a {function __construct(){new a();}} new a(); # - kills php
References: 1  Groups: php.bugs 
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Edit report at http://bugs.php.net/bug.php?id=51896&edit=1

 ID:               51896
 Updated by:       felipe@php.net
 Reported by:      RocketInABog at techno-monks dot net
 Summary:          class a {function __construct(){new a();}} new a(); #
                   - kills php
-Status:           Open
+Status:           Bogus
 Type:             Bug
 Package:          Reproducible crash
 Operating System: Windows XP
 PHP Version:      5.3SVN-2010-05-23 (SVN)

 New Comment:

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php




Previous Comments:
------------------------------------------------------------------------
[2010-05-24 00:32:45] RocketInABog at techno-monks dot net

Description:
------------
I know it's wrong to try to instantiate a class within it's own
constructor,
yet I thought that I should report the crashing of the php interpreter.
Perhaps this case may expose an area of the interpreter that may cause
other problems.

Here is a sample script.

<?php class a {function __construct(){new a();}} new a(); # - kills php
?>


Here is the message produced (with php 5.3.2):

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to
allocate 261904 bytes) in M:\workspace\html\directAbrasives\lib\t.php on
line 1


Here is my php version:

PHP 5.3.2 (cli) (built: Mar  3 2010 20:47:01) 
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies


Running this code on PHP 5.2 didn't generate any message at all.

Also, I tried a catching exceptions, yet it appears that none are thrown
in this case.

I am operating on WindowsXP.


Cheers.

-g


Test script:
---------------
<?php class a {function __construct(){new a();}} new a(); # - kills php
?>

Expected result:
----------------
Some kind of error message with a line number saying you can't do this.


Actual result:
--------------
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to
allocate 261904 bytes) in M:\workspace\html\directAbrasives\lib\t.php on
line 1



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



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