From:             Bjorn dot Wiberg at its dot uu dot se
Operating system: Debian 5.0.1, IBM AIX 5.3
PHP version:      5.2.9
PHP Bug Type:     Unknown/Other Function
Bug description:  explode() returns empty array if delimiter not found and 
limit is negative

Description:
------------
It appears that explode() returns an empty array (instead of an array with
string in it) if limit is negative and delimiter contains a value that is
not contained in string.

The documentation of explode()
(http://www.php.net/manual/en/function.explode.php, section "Return
Values") however states that "If delimiter contains a value that is not
contained in string, then explode() will return an array containing
string", which then does not hold for negative limits.

Reproduce code:
---------------
<?php 
  print_r(explode('_', 'test', -1));
  print_r(explode('_', 'test_underscore', -1));

  print_r(explode('_', 'test'));
  print_r(explode('_', 'test_underscore'));
?>

Expected result:
----------------
Array
(
    [0] => test
)
Array
(
    [0] => test
)
Array
(
    [0] => test
)
Array
(
    [0] => test
    [1] => underscore
)

Actual result:
--------------
bwib...@musica-lp02:~$ php -n -f test.php 
Array
(
)
Array
(
    [0] => test
)
Array
(
    [0] => test
)
Array
(
    [0] => test
    [1] => underscore
)

-- 
Edit bug report at http://bugs.php.net/?id=48035&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=48035&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=48035&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=48035&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=48035&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=48035&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=48035&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=48035&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=48035&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=48035&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=48035&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=48035&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=48035&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=48035&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=48035&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=48035&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=48035&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=48035&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=48035&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=48035&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=48035&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=48035&r=mysqlcfg

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