From: ben at bbbsystems dot net
Operating system: Free BSD 5.3
PHP version: 5.1.2
PHP Bug Type: *Math Functions
Bug description: intVal broken for calculated 1999
Description:
------------
This bug is for the function intVal( ), and I also found that typecasting
with (int) produces the same results.
This is a very weird bug I encountered because of a price that is 19.99
and our processor requires it to be sent as 1999. 1999 is the only value
I was able to find that doesn't work correctly, but I'm sure there are
others.
I also checked it on a linux system with an older version of php 4 and got
the same results. I upgraded our php to 5.1.2 then tried it again after it
failed. I suspect the bug to be a floating point issue, but I'm not
certain of it.
-Ben Laurienti
BBB Systems, LLC
Reproduce code:
---------------
<?php
$test1 = intVal(1999);
$amount = 19.99 * 100;
$test2 = intVal($amount);//value is 1998
$test3 = intVal("$amount");//value is 1999
echo $test1 . "<br />\n";
echo $test2 . "<br />\n";
echo $test3 . "<br />\n";
?>
Expected result:
----------------
1999
1999
1999
Actual result:
--------------
1999
1998
1999
--
Edit bug report at http://bugs.php.net/?id=36039&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=36039&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=36039&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=36039&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=36039&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=36039&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=36039&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=36039&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=36039&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=36039&r=support
Expected behavior: http://bugs.php.net/fix.php?id=36039&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=36039&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=36039&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=36039&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36039&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=36039&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=36039&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=36039&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=36039&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=36039&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=36039&r=mysqlcfg
