note 41548 added to function.bccomp

From: Date: Wed, 14 Apr 2004 12:43:50 +0000
Subject: note 41548 added to function.bccomp
Groups: php.notes 
Request: Send a blank email to php-notes+get-68108@lists.php.net to get a copy of this message
The bccomp function seems to differentiate between negative zero and positive zero. For example: <?php echo bccomp('-0.00001', '-0.00000', 2) . "<br>"; echo bccomp('-0.00001', '0.00000', 2) . "<br>"; ?> Outputs the following, which is obviously wrong. 0 -1 As I was only trying to determine if a given value was positive or negative, to a particular number of decimal places, I came up with the following solution. It is not a general solution though. function my_bccomp_zero($amount, $scale) { if ($amount < 0) { return bccomp($amount, '-0.0', $scale); } else { return bccomp($amount, '0.0', $scale); } } ---- Manual Page -- http://www.php.net/manual/en/function.bccomp.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+41548 Delete -- http://master.php.net/manage/user-notes.php?action=delete+41548&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+41548&report=yes Search -- http://master.php.net/manage/user-notes.php

« previous php.notes (#68108) next »