From: dbauleo at terra dot com dot br
Operating system: Windows 2000
PHP version: 4.3.9
PHP Bug Type: Math related
Bug description: fmod() does not return the correct value.
Description:
------------
I used the fmod() function with float numbers, and it was an exact
division, so it was supposed to return 0, instead of it, the Y value was
returned.
Reproduce code:
---------------
<?php
echo fmod(396456.06, 56636.58);
?>
Expected result:
----------------
fmod(396456.06, 56636.58) = 0
Actual result:
--------------
fmod(396456.06, 56636.58) = 56636.58
function f_mod($x,$y)
{
$i = floor($x / $y);
$a = $x - $i * $y;
return $a;
}
f_mod(396456.06, 56636.58) = 0
--
Edit bug report at http://bugs.php.net/?id=30330&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30330&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30330&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30330&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=30330&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=30330&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=30330&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=30330&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=30330&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=30330&r=support
Expected behavior: http://bugs.php.net/fix.php?id=30330&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=30330&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=30330&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=30330&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30330&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=30330&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=30330&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=30330&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=30330&r=float
MySQL Configuration Error: http://bugs.php.net/fix.php?id=30330&r=mysqlcfg
