PHP 4.0 Bug #9692: Subtraction result below 100 yields wrong decimal output

From: bhavint@directi.com Operating system: Linux PHP version: 4.0.4pl1 PHP Bug Type: Math related Bug description: Subtraction result below 100 yields wrong decimal output Please check http://www.transecute.com/~kalpesh/check.php4 In case (1) I subtract a number from another which should output '0.9' but insted outputs '0.90000000000009' In case (2) I subtract a number from another and it gives correct output This behaviour has been noticed if the result of the subtraction is greater than 100. I have also published my PHPINFO output on the same page for your reference. This bug is quite dangerous (especially for us when we are dealing with financial calculations for our payment gateway using PHP) since all our reports dont tally at the end of the day by tiny figures such as this. -- Edit Bug report at: http://bugs.php.net/?id=9692&edit=1