#47067 [NEW]: NULL is set or unset value?

From: Date: Sun, 11 Jan 2009 10:44:36 +0000
Subject: #47067 [NEW]: NULL is set or unset value?
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-132742@lists.php.net to get a copy of this message
From:             farkow at gmail dot com
Operating system: Windows/WAMP Server
PHP version:      5.2.8
PHP Bug Type:     Unknown/Other Function
Bug description:  NULL is set or unset value?

Description:
------------
I realized it when i try someting about my web-based game, when you set an
integer NULL, it is same with 0 and ''.


Reproduce code:
---------------
<?php
$x = NULL;
if($x == 0) echo 'UPPS 1<br>';
if($x == '') echo 'UPPS 2<br>';
if($x === '') echo 'UPPS 3<br>';
?>

Expected result:
----------------
//output


Actual result:
--------------
//output
UPPS 1
UPPS 2

-- 
Edit bug report at http://bugs.php.net/?id=47067&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        http://bugs.php.net/fix.php?id=47067&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        http://bugs.php.net/fix.php?id=47067&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        http://bugs.php.net/fix.php?id=47067&r=trysnapshot60
Fixed in CVS:                        http://bugs.php.net/fix.php?id=47067&r=fixedcvs
Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47067&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=47067&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=47067&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=47067&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=47067&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=47067&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=47067&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=47067&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=47067&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=47067&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=47067&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=47067&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=47067&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=47067&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=47067&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=47067&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=47067&r=mysqlcfg



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