#45403 [Opn->Bgs]: Script causes infinite loop

From: Date: Wed, 02 Jul 2008 11:32:50 +0000
Subject: #45403 [Opn->Bgs]: Script causes infinite loop
References: 1  Groups: php.bugs 
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 ID:               45403
 Updated by:       jani@php.net
 Reported By:      glaesser at whsoft dot de
-Status:           Open
+Status:           Bogus
 Bug Type:         Reproducible crash
 Operating System: Debian4, php 5.2.0-8+etch11
 PHP Version:      5.2CVS-2008-07-02
 New Comment:

It's actually just bad code. You're not considering that there's the
DST change happening on 2008-10-26. (Last sunday on october in 2008).



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

[2008-07-02 10:10:16] glaesser at whsoft dot de

Tested on

Apache/2.2.8 (Win32) DAV/2 mod_ssl/2.2.8 OpenSSL/0.9.8g
mod_autoindex_color PHP/5.2.7-dev configured -- resuming normal
operations

Same problem:

Script timeout | Unable to allocate enough memory

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

[2008-07-02 09:15:37] jani@php.net

Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows (zip):
 
  http://snaps.php.net/win32/php5.2-win32-latest.zip

For Windows (installer):

  http://snaps.php.net/win32/php5.2-win32-installer-latest.msi



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

[2008-07-01 14:42:03] glaesser at whsoft dot de

Description:
------------
Following script works perfect on PHP 5.0.5-Debian-0.8~sarge1 but it
produces infinite loops on PHP 5.1.2 or PHP 5.2.0-8+etch11.

Reproduce code:
---------------
$testArray = array();
$testArray[] = array('ueberdat' => '2008-04-01', 'rueckdat' =>
'2008-04-06');
$testArray[] = array('ueberdat' => '2008-04-12', 'rueckdat' =>
'2008-04-26');
$testArray[] = array('ueberdat' => '2008-04-26', 'rueckdat' =>
'2008-05-03');
$testArray[] = array('ueberdat' => '2008-05-10', 'rueckdat' =>
'2008-05-20');
$testArray[] = array('ueberdat' => '2008-05-24', 'rueckdat' =>
'2008-06-07');
$testArray[] = array('ueberdat' => '2008-06-14', 'rueckdat' =>
'2008-06-21');
$testArray[] = array('ueberdat' => '2008-06-21', 'rueckdat' =>
'2008-06-28');
$testArray[] = array('ueberdat' => '2008-06-28', 'rueckdat' =>
'2008-07-05');
$testArray[] = array('ueberdat' => '2008-07-05', 'rueckdat' =>
'2008-07-12');
$testArray[] = array('ueberdat' => '2008-07-19', 'rueckdat' =>
'2008-07-26');
$testArray[] = array('ueberdat' => '2008-07-26', 'rueckdat' =>
'2008-08-02');
$testArray[] = array('ueberdat' => '2008-08-02', 'rueckdat' =>
'2008-08-16');
$testArray[] = array('ueberdat' => '2008-08-23', 'rueckdat' =>
'2008-09-06');
$testArray[] = array('ueberdat' => '2008-09-13', 'rueckdat' =>
'2008-09-20');
$testArray[] = array('ueberdat' => '2008-09-27', 'rueckdat' =>
'2008-10-04');
$testArray[] = array('ueberdat' => '2008-10-11', 'rueckdat' =>
'2008-10-15');
$testArray[] = array('ueberdat' => '2008-10-25', 'rueckdat' =>
'2008-11-02');

$arrRet = array();
foreach ($testArray as $testValue) {
	$startDat = $testValue['ueberdat'];
	while ($startDat < $testValue['rueckdat']) {
		$arrRet[] = array('belDat' => $startDat);
		$startDat = date("Y-m-d", strtotime($startDat)+86400);
	}
}

print_r($arrRet);

Expected result:
----------------
I want all days from the given dates like...

Array
(
    [0] => Array
        (
            [belDat] => 2008-04-01
        )

    [1] => Array
        (
            [belDat] => 2008-04-02
        )

    [2] => Array
        (
            [belDat] => 2008-04-03
        )

    [3] => Array
        (
            [belDat] => 2008-04-04
        )

    [4] => Array
        (
            [belDat] => 2008-04-05
        )

    [5] => Array
        (
            [belDat] => 2008-04-12
        )

    [6] => Array
        (
            [belDat] => 2008-04-13
        )

    [7] => Array
        (
            [belDat] => 2008-04-14
        )

    [8] => Array
        (
            [belDat] => 2008-04-15
        )

 ... and so on

Actual result:
--------------
Script timeout on new PHP-Version.


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


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