#26314 [Opn->Bgs]: Decimal numbers starting with 0 always treated as octals, even when invalid

ID: 26314 Updated by: derick@php.net Reported By: matteo at beccati dot com -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Debian GNU/Linux 3.0 PHP Version: 4.3.4 New Comment: Fixed status Previous Comments: ------------------------------------------------------------------------ [2003-11-19 06:40:55] matteo at beccati dot com Fixed summary... ------------------------------------------------------------------------ [2003-11-19 06:39:40] derick@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This is exactly as it should be. If you prefix the 0 on a non-octal number, PHP still treats it as an octal number as is described in the manual. ------------------------------------------------------------------------ [2003-11-19 06:37:32] matteo at beccati dot com Description: ------------ According to the manual, integers can be specified in the octal notation preceding the number with a zero. Some lines below I can see this regexp: octal : 0[0-7]+ What I don't understand is why an invalid octal number preceded by a 0 is treated as an octal, having a value of 0. I know that you'll probably answer that it's a feature and not a bug, but I think that this behaviour should be highlighted in the manual :) Also checked on PHP 4.1.2, 4.3.0 and 4.3.3 Reproduce code: --------------- <?php var_dump(07); // Correct var_dump(010); // Correct var_dump(08); // Wrong, 8 is not an octal number ?> Expected result: ---------------- int(7) int(8) int(8) Actual result: -------------- int(7) int(8) int(0) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=26314&edit=1