Float value Division gives irrational results php 5.2.5

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hi

can somebody help me on this please.

Description:
------------

Basic division of one float value by another gives irrational results in php 5.2.5

os : windows 2000, iis 5 upto date with will microsoft patches
we have two independent websites each using two versions of php on the
same server

same sample php code (as given below) placed on each website
http://maptelltrack.com/divide.php (php 4.3.10 gives wrong results)
http://maptell.com/divide.php (php 5.2.6 gives correct results)

php 4.3.10 gives correct results and php5.2.5 gives Wrong results for
the same php code on the web server

php info file for each website

http://maptelltrack.com/info.php (php 5.2.5) using php-cgi.exe
(we have tried all versions upto php5.2-win32-latest)

http://maptell.com/info.php (php 4.3.10) using php.exe

Please do not try the same with command line since the results are
different.

Sample code:
---------------
<?php
$test = var_dump (46985.532 / 3600) ;
echo($test);
?>

Expected result:
----------------
float(13.0515366667)

Actual result:
--------------
float(10)

thanks
rajesh
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