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

ID: 26314 User updated by: matteo at beccati dot com Reported By: matteo at beccati dot com -Status: Bogus +Status: Open -Bug Type: Scripting Engine problem +Bug Type: Documentation problem Operating System: Debian GNU/Linux 3.0 PHP Version: 4.3.4 New Comment: [Changed category to "Documentation problem"] OK, I understand... Can I suggest adding a warning in the manual to let people know what happens when the provided number is invalid? IMHO that isn't much clear now. P.S. Sorry for reopening it by changing the summary... I didn't know you already answered :) Previous Comments: ------------------------------------------------------------------------ [2003-11-19 06:48:40] derick@php.net Fixed status ------------------------------------------------------------------------ [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