From:             dev at medifirst dot fr
Operating system: Linux or Windows
PHP version:      5.4.13
Package:          Math related
Bug Type:         Bug
Bug description:Incorrect result of round

Description:
------------
The "round" function returns a bad value if "precision" > 17.


Test script:
---------------
php.ini
precision = 20



php -r "echo round(5.554, 2)"



Expected result:
----------------
5.55 is the expected value

Actual result:
--------------
5.5499999999999998224 is the incorrect result

-- 
Edit bug report at https://bugs.php.net/bug.php?id=64543&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=64543&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=64543&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=64543&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=64543&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=64543&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=64543&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=64543&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=64543&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=64543&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=64543&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=64543&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=64543&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=64543&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64543&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=64543&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=64543&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=64543&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64543&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=64543&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=64543&r=mysqlcfg

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