Bug #52689 [NEW]: ban number of loops on float number

From: Date: Tue, 24 Aug 2010 16:46:34 +0000
Subject: Bug #52689 [NEW]: ban number of loops on float number
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-153750@lists.php.net to get a copy of this message
From:             
Operating system: Linux
PHP version:      5.3.3
Package:          *General Issues
Bug Type:         Bug
Bug description:ban number of loops on float number

Description:
------------
for different float values in loop (while or for) wrong number of loops.
When 
number si bigger then 4.4 in condition, then one more loop is doing.

Test script:
---------------
for ($index = 3.1; $index < 4.0; $index += 0.1) {
   echo $index.'<br />';
}
for ($index = 3.1; $index < 4.4; $index += 0.1) {
   echo $index.'<br />';
}



Expected result:
----------------
number is 4.0
= OUTPUT ==============
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9

end is 3.9

number is 4.4
= OUTPUT ==============
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
4.1
4.2
4.3

end is 4.3

Actual result:
--------------
number is 4.0
= OUTPUT ==============
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9

end is 3.9

number is 4.4
= OUTPUT ==============
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
4.1
4.2
4.3
4.4 < WRONG

end is 4.4 < WRONG

-- 
Edit bug report at http://bugs.php.net/bug.php?id=52689&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=52689&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=52689&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=52689&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=52689&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52689&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=52689&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=52689&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=52689&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=52689&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=52689&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=52689&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=52689&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=52689&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=52689&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=52689&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=52689&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=52689&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=52689&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=52689&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=52689&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=52689&r=mysqlcfg



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