ID: 41373 Updated by: [EMAIL PROTECTED] Reported By: romy4 at online dot ua -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: WinNT,Linux PHP Version: 5.2.2 New Comment:
. Previous Comments: ------------------------------------------------------------------------ [2007-05-13 15:00:01] carsten_sttgt at gmx dot de > $i=++$i + ++$i; There is one important rule: Don't change the value of a variable more then one times between sequence points. For a better explanation you can start for example here [1]. It's the same reason as in bug #41364. BTW: Already with "$i = $i++;" you have different results with different compilers (the way the code optimizer work). Regards, Carsten [1] http://c-faq.com/expr/seqpoints.html ------------------------------------------------------------------------ [2007-05-12 13:50:44] romy4 at online dot ua i do not know how is php engine works inside but logically ++i should increment 'i' value by reference not copy of 'i' variable. ------------------------------------------------------------------------ [2007-05-12 13:45:34] romy4 at online dot ua sorry, check what? i thought '++' has higher priority than '+' that shown in the manual (http://www.php.net/manual/ru/language.operators.php) or not at last time? ------------------------------------------------------------------------ [2007-05-12 09:38:50] [EMAIL PROTECTED] 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 The evaluation order of this construct is undefined and random things may happen. ------------------------------------------------------------------------ [2007-05-12 08:41:56] itonix at inet dot ua Very! VERY important bug ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/41373 -- Edit this bug report at http://bugs.php.net/?id=41373&edit=1
