#25290 [Com]: printf produces incorrect result

ID: 25290 Comment by: jan at traum-projekt dot com Reported By: oli_pla at hotmail dot com Status: Bogus Bug Type: Strings related Operating System: Windows 2000/XP PHP Version: 4.3.3 New Comment: I can reproduce this too: Same system (XAMPP from Apachefriends.org, WinXP Pro) as powermieze. $my = 814.54; printf("MY %0.2f", $my); echo "<br>"; echo number_format($my,2); gives: MY 804.54 814.54 Previous Comments: ------------------------------------------------------------------------ [2003-10-11 13:04:42] powermieze at web dot de I also tried the test "[28 Aug 7:35am EDT] oli_pla at hotmail dot com" and the same occurs: Reproduce code: printf('%.2f',813.54); Expected result: 813.54 Actual result: 803.54 Reproduce code: $my = 814.54; printf("MY %0.2f", $my); Expected result: 814.54 Actual result: 804.54 Reproduce code: $my = 813.54; printf("MY %0.2f", $my); Expected result: 813.54 Actual result: 803.54 I tested this on XP Professionel System - ApacheFriends XAMPP Version 0.9: Apache/2.0.47 (Win32) mod_ssl/2.0.47 OpenSSL/0.9.7b PHP/4.3.3RC2-dev ------------------------------------------------------------------------ [2003-08-28 10:14:52] sniper@php.net Maybe you're mixing some old dlls with news ones (PHP related). This works just fine for me on XP. ------------------------------------------------------------------------ [2003-08-28 07:35:32] oli_pla at hotmail dot com Description: ------------ For some particular values, printf('%.2f',$val) gives incorrect results on Windows 2000 and XP. The behaviour is that a digit is one unit too low. For instance, with 813.54, you get 803.54, and 349.61 becomes 348.61. On Windows 98 or Linux, the problem doesn't appear. I'm aware it may be a bug in Microsoft's C runtime, in which case it wouldn't be a PHP problem. But it would be interesting to be sure... Reproduce code: --------------- printf('%.2f',813.54); Expected result: ---------------- 813.54 Actual result: -------------- 803.54 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=25290&edit=1