#30764 [Opn->Fbk]: printf + zero fill + negative number = extra null character on windows xp

ID: 30764 Updated by: sniper@php.net Reported By: php at arantius dot com -Status: Open +Status: Feedback Bug Type: Output Control Operating System: Windows XP PHP Version: 4.3.9 New Comment: Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip And try this script with the PHP CLI binary: <?php var_dump(sprintf("%0.2f", 1.51555)); var_dump(sprintf("%0.2f", -1.51555)); var_dump(sprintf("%0.2f", -1)); var_dump(sprintf("%.2f", -1.5)); var_dump(sprintf("%.2f", -1.51555)); var_dump(sprintf("%0.2f", 1.51555)); ?> Previous Comments: ------------------------------------------------------------------------ [2004-11-11 21:06:19] php at arantius dot com Description: ------------ When using printf, zero fill, floats, and negative numbers, PHP 4.3.9 on Windows XP Pro SP1 generates null characters at the end of the number that should not be there. Passing a negative number, i.e. -1, into the format string "%0.2f" will give an invalid result, i.e. "-1.00[NULL]" where [NULL] is the 0th byte. Reproduce code: --------------- <? printf("%0.2f<br />", 1.51555); //ok printf("%0.2f<br />", -1.51555); //broken printf("%0.2f<br />", -1); //broken printf("%.2f<br />", -1.5); //ok printf("%.2f<br />", -1.51555); //ok printf("%0.2f<br />", 1.51555); //ok ?> Expected result: ---------------- I expect "-1.00" or appropriately rounded values with no trailing null bytes. Actual result: -------------- Cannot paste output, it is truncated at the first null byte. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30764&edit=1