From:             gohanman at gmail dot com
Operating system: CentOS
PHP version:      5.2.8
PHP Bug Type:     PCRE related
Bug description:  Regex works in perl, not with preg_match

Description:
------------
I'm having a preg_match function fail periodically. I finally found a
specific input string that fails in PHP but works fine in Perl. I'm at a
loss why.

Reproduce code:
---------------
$pattern = "/(\w\w\w) (\d+) (\d\d\d\d) (\d+):(\d\d)(\w)M/";
$input = "Dec 17 2008 2:23PM";
$rv = preg_match($pattern, $input, $groups);
echo var_dump($rv);

Expected result:
----------------
A non-zero result indicating the pattern matched.

Actual result:
--------------
Zero.

-- 
Edit bug report at http://bugs.php.net/?id=46890&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=46890&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=46890&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=46890&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=46890&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=46890&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=46890&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=46890&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=46890&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=46890&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=46890&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=46890&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=46890&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=46890&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=46890&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=46890&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=46890&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=46890&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=46890&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=46890&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=46890&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=46890&r=mysqlcfg

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