ID: 29732
Updated by: [EMAIL PROTECTED]
Reported By: robinmessag at hotmail dot com
-Status: Open
+Status: Feedback
Bug Type: Feature/Change Request
Operating System: Windows 98SE
PHP Version: Irrelevant
New Comment:
What was the previous bug number?
Previous Comments:
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[2004-08-18 14:39:25] robinmessag at hotmail dot com
Description:
------------
When doing the modulus of a negative number, PHP returns a bogus value.
However, it is clearly doing the modulus, simply returning a negative
answer.
In order to work around, one can add the modulus and mod again, but
this is not a satisfactory solution IMHO.
This bug has been reported before and dismissed, however, modulus on
negative numbers is correct and useful and this should be fixed or at
least documented.
Reproduce code:
---------------
$hour=4;
$timedifference1=-6;
$timedifference2=-30;
$realtime=($hour+$timedifference1)%24;
$realtime2=($hour+$timedifference2)%24;
$realtime3=($hour+$timedifference2)%24;
$realtime3=(24+$realtime3)%24;
echo("The time is:$realtime or maybe $realtime2<BR>");
echo("The correct time is:$realtime3<BR>");
Expected result:
----------------
The time is:22 or maybe 22
The correct time is:22
Actual result:
--------------
The time is:-2 or maybe -2
The correct time is:22
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Edit this bug report at http://bugs.php.net/?id=29732&edit=1
