Bug #54056 [NEW]: number_format returns an incorrect answer for certain parameters
| From: | mr_platelet+jin6vr at fastmail dot fm | Date: | Sun, 20 Feb 2011 13:17:59 +0000 |
| Subject: | Bug #54056 [NEW]: number_format returns an incorrect answer for certain parameters | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-158900@lists.php.net to get a copy of this message | ||
From:
Operating system: Linux
PHP version: 5.3.5
Package: Strings related
Bug Type: Bug
Bug description:number_format returns an incorrect answer for certain parameters
Description:
------------
In the script below, number_format returns a string
representing zero, which is quite wrong.
Test script:
---------------
<?php
$x = pow(2, -1074);
$s = number_format($x, 1074, '.', '');
if(trim($s, '0') === '.') {
print "\$s represents zero, which is wrong.\n";
}
Expected result:
----------------
I expect to see no output.
Actual result:
--------------
The script outputs the following message:
$s represents zero, which is wrong.
--
Edit bug report at http://bugs.php.net/bug.php?id=54056&edit=1
--
Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54056&r=trysnapshot52
Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54056&r=trysnapshot53
Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54056&r=trysnapshottrunk
Fixed in SVN: http://bugs.php.net/fix.php?id=54056&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54056&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=54056&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=54056&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=54056&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=54056&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=54056&r=support
Expected behavior: http://bugs.php.net/fix.php?id=54056&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=54056&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=54056&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=54056&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54056&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54056&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=54056&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=54056&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=54056&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=54056&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=54056&r=mysqlcfg