From:             
Operating system: Linux 2.6.38 amd64
PHP version:      5.3.6
Package:          Date/time related
Bug Type:         Bug
Bug description:On 64 bit strtotime() mishandles all-zero timestamps

Description:
------------
The behavior of strtotime() on 64 bit machines (see below) for all-zero
timestamps is undesirable.  On 32 bit machines the function outputs NULL
for a string input "0000-00-00 00:00", on 64 bit machines it yields
-62169987600.  This is undesirable, as the all-zero timestamp is not a
valid date ("00" is not a month). On 64 bit systems strtotime() should
return NULL for "0000-00-00 00:00".


Test script:
---------------
/* Linux ubuntu64-vbox 2.6.38-8-server #42-Ubuntu SMP Mon Apr 11 03:49:04
UTC 
 * 2011 x86_64 x86_64 x86_64 GNU/Linux
 * PHP 5.3.6-6~dotdeb.1 with Suhosin-Patch (cli) (built: Apr  3 2011
16:36:05) 
 */

<?php
  echo strtotime("0000-00-00 00:00");
?>

Actual result:
--------------
-62169987600

-- 
Edit bug report at https://bugs.php.net/bug.php?id=55252&edit=1
-- 
Try a snapshot (PHP 5.2):            
https://bugs.php.net/fix.php?id=55252&r=trysnapshot52
Try a snapshot (PHP 5.3):            
https://bugs.php.net/fix.php?id=55252&r=trysnapshot53
Try a snapshot (trunk):              
https://bugs.php.net/fix.php?id=55252&r=trysnapshottrunk
Fixed in SVN:                        
https://bugs.php.net/fix.php?id=55252&r=fixed
Fixed in SVN and need be documented: 
https://bugs.php.net/fix.php?id=55252&r=needdocs
Fixed in release:                    
https://bugs.php.net/fix.php?id=55252&r=alreadyfixed
Need backtrace:                      
https://bugs.php.net/fix.php?id=55252&r=needtrace
Need Reproduce Script:               
https://bugs.php.net/fix.php?id=55252&r=needscript
Try newer version:                   
https://bugs.php.net/fix.php?id=55252&r=oldversion
Not developer issue:                 
https://bugs.php.net/fix.php?id=55252&r=support
Expected behavior:                   
https://bugs.php.net/fix.php?id=55252&r=notwrong
Not enough info:                     
https://bugs.php.net/fix.php?id=55252&r=notenoughinfo
Submitted twice:                     
https://bugs.php.net/fix.php?id=55252&r=submittedtwice
register_globals:                    
https://bugs.php.net/fix.php?id=55252&r=globals
PHP 4 support discontinued:          
https://bugs.php.net/fix.php?id=55252&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=55252&r=dst
IIS Stability:                       
https://bugs.php.net/fix.php?id=55252&r=isapi
Install GNU Sed:                     
https://bugs.php.net/fix.php?id=55252&r=gnused
Floating point limitations:          
https://bugs.php.net/fix.php?id=55252&r=float
No Zend Extensions:                  
https://bugs.php.net/fix.php?id=55252&r=nozend
MySQL Configuration Error:           
https://bugs.php.net/fix.php?id=55252&r=mysqlcfg
Try a snapshot (PHP 5.4):            
https://bugs.php.net/fix.php?id=55252&r=trysnapshot54

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