ID:               36039
 User updated by:  ben at bbbsystems dot net
 Reported By:      ben at bbbsystems dot net
 Status:           Open
 Bug Type:         *Math Functions
 Operating System: Free BSD 5.3
 PHP Version:      5.1.2
 New Comment:

The problem also happens with the function floor( )


Previous Comments:
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[2006-01-17 00:57:47] ben at bbbsystems dot net

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


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