#23780 [NEW]: Number comparision fails
| From: | walovaton at yahoo dot com dot mx | Date: | Fri, 23 May 2003 14:54:28 +0000 |
| Subject: | #23780 [NEW]: Number comparision fails | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-40281@lists.php.net to get a copy of this message | ||
From: walovaton at yahoo dot com dot mx
Operating system: Linux
PHP version: 4.3.1
PHP Bug Type: Variables related
Bug description: Number comparision fails
When I'm trying to compare two numbers, some times I get not expected
results. Specially with float precision numbers.
In my case:
$value1 = 58.6;
$value2 = 58.6;
if ($value1 > $value2) {
// PHP Bug!
// This expresion seems to be true for some reason
// The expected result is false, isn't it??
}
This happens comparing the numbers as floats or as strings.
It is important to say that $value1 is a value entered by the user into a
form input (a validation number) and $value2 is the addition of several
fields and such addition must be equal to $value1 in order to be accepted
by the application.
I hope this is clear enough for you.
-William
--
Edit bug report at http://bugs.php.net/?id=23780&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=23780&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=23780&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=23780&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=23780&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=23780&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=23780&r=support
Expected behavior: http://bugs.php.net/fix.php?id=23780&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=23780&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=23780&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=23780&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=23780&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=23780&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=23780&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=23780&r=gnused