#33595 [NEW]: Memory leak

From:	rodricg at sellingsource dot com	Date:	Wed, 06 Jul 2005 21:44:26 +0000
Subject:	#33595 [NEW]: Memory leak
Groups:	php.bugs
Request:	Send a blank email to php-bugs+get-81498@lists.php.net to get a copy of this message

From:             rodricg at sellingsource dot com
Operating system: Linux
PHP version:      5.0.4
PHP Bug Type:     Class/Object related
Bug description:  Memory leak

Description:
------------
Objects with recursive references leak memory. 
PHP 5.1.0b2 exhibits the same behavior. 

Reproduce code:
---------------
<?php
class A {
    function __construct () {
        $this->b = new B($this);
    }
}

class B {
    function __construct ($parent = NULL) {
        $this->parent = $parent;
    }
}

for ($i = 0 ; $i < 1000000 ; $i++) {
    $a = new A();
}
?>

Expected result:
----------------
Memory usage should remain constant. 

Actual result:
--------------
Memory usage quickly increases to consume several hundred 
megabytes. 

-- 
Edit bug report at http://bugs.php.net/?id=33595&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=33595&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=33595&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=33595&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=33595&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=33595&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=33595&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=33595&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=33595&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=33595&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=33595&r=notwrong
Not enough info:             http://bugs.php.net/fix.php?id=33595&r=notenoughinfo
Submitted twice:             http://bugs.php.net/fix.php?id=33595&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=33595&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=33595&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=33595&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=33595&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=33595&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=33595&r=float
No Zend Extensions:          http://bugs.php.net/fix.php?id=33595&r=nozend
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=33595&r=mysqlcfg


   

Thread (22 messages)

• rodricg at sellingsource dot comWed, 06 Jul 2005 21:44:26 +0000
  • tony2001@php.netWed, 06 Jul 2005 23:03:25 +0000#33595 [Opn->Bgs]: Memory leak
  • rodricg at sellingsource dot comThu, 07 Jul 2005 01:49:54 +0000#33595 [Bgs->Opn]: Memory leak
  • sniper@php.netThu, 07 Jul 2005 12:11:49 +0000#33595 [Opn->Asn]: Memory leak
  • dmitry@php.netMon, 01 Aug 2005 09:00:33 +0000#33595 [Asn]: Memory leak
  • marek at lewczuk dot comMon, 05 Dec 2005 07:40:47 +0000#33595 [Com]: recursive references leak memory
  • letssurf at gmail dot comTue, 17 Jan 2006 16:56:51 +0000#33595 [Com]: recursive references leak memory
  • rodricg at sellingsource dot comTue, 17 Jan 2006 18:08:56 +0000#33595 [Asn]: recursive references leak memory
  • letssurf at gmail dot comThu, 19 Jan 2006 09:31:07 +0000#33595 [Com]: recursive references leak memory
  • K dot Londenberg at librics dot deWed, 22 Feb 2006 14:12:23 +0000#33595 [Com]: recursive references leak memory
  • seufert at gmail dot comThu, 13 Apr 2006 06:24:02 +0000#33595 [Com]: recursive references leak memory
  • frode at coretrek dot comThu, 04 May 2006 14:08:23 +0000#33595 [Com]: recursive references leak memory
  • ruslan dot kyrychuk at gmail dot comTue, 15 Aug 2006 12:02:00 +0000#33595 [Com]: recursive references leak memory
  • taneli at crasman dot fiWed, 01 Nov 2006 09:07:49 +0000#33595 [Com]: recursive references leak memory
  • judas dot iscariote at gmail dot comThu, 02 Nov 2006 22:28:05 +0000#33595 [Com]: recursive references leak memory
  • taneli at crasman dot fiWed, 24 Jan 2007 13:53:46 +0000#33595 [Com]: recursive references leak memory
  • wckits at rit dot eduFri, 25 May 2007 19:50:39 +0000#33595 [Com]: recursive references leak memory
  • zwacks10 at yahoo dot comFri, 03 Aug 2007 09:37:44 +0000#33595 [Com]: recursive references leak memory
  • zwacks10 at yahoo dot comSat, 04 Aug 2007 00:40:22 +0000#33595 [Com]: recursive references leak memory
  • shez at starfangled dot netThu, 22 Nov 2007 14:48:30 +0000#33595 [Com]: recursive references leak memory
  • dmitry@php.netTue, 29 Jan 2008 11:35:06 +0000#33595 [Asn->Csd]: recursive references leak memory
  • a at a dot comTue, 28 Sep 2010 08:45:25 +0000Bug #33595 [Com]: recursive references leak memory