#30330 [NEW]: fmod() does not return the correct value.

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