[PHP-BUG] Bug #53956 [NEW]: Zero Width Space is not replaced by ordinary space

[skyboy at mail dot ru]

From:             
Operating system: Ubuntu 10.10
PHP version:      5.3.5
Package:          PCRE related
Bug Type:         Bug
Bug description:Zero Width Space is not replaced by ordinary space

Description:
------------
Group of zero width spaces is succesfully replaced by any character but
ordinary space.

Test script:
---------------
$str = "​​‎​​‎​​‎"; // 27 zero width spaces with unicode
code of u200B 

var_dump($str);

var_dump(preg_replace('#\s+#', $str, '-'));

var_dump(preg_replace('#\s+#', $str, ' '));

Expected result:
----------------
string(27) "​​‎​​‎​​‎" string(1) "-" string(1)
"​​‎​​‎​​‎-" 

Actual result:
--------------
string(27) "​​‎​​‎​​‎" string(1) "-" string(27)
"​​‎​​‎​​‎" 



-- 
Edit bug report at http://bugs.php.net/bug.php?id=53956&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=53956&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=53956&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=53956&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=53956&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=53956&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=53956&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=53956&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=53956&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=53956&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=53956&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=53956&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=53956&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=53956&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=53956&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=53956&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=53956&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=53956&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=53956&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=53956&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=53956&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=53956&r=mysqlcfg