Doc #73207 [Ana]: Array ordering is same between 5.6.21 and 7.1.0 RC3

Edit report at https://bugs.php.net/bug.php?id=73207&edit=1 ID: 73207 Updated by: cmb@php.net Reported by: tuyen-truong at cybozu dot vn Summary: Array ordering is same between 5.6.21 and 7.1.0 RC3 Status: Analyzed Type: Documentation Problem Package: Arrays related PHP Version: 7.1.0RC3 Assigned To: cmb Block user comment: N Private report: N New Comment: > You mean that after this bug is fixed, the array order will be > same as php 5.6 series, is that right? Unfortunately, #71539 can't be fixed for BC reasons, so PHP 7.0 will keep the other ordering. Previous Comments: ------------------------------------------------------------------------ [2016-10-03 04:37:02] tuyen-truong at cybozu dot vn I see that related bug has been reopened(bug #71539). You mean that after this bug is fixed, the array order will be same as php 5.6 series, is that right? ------------------------------------------------------------------------ [2016-09-30 10:48:21] cmb@php.net Okay; I think that a respective note in UPGRADING is appropriate. FTR: see bug #71539. ------------------------------------------------------------------------ [2016-09-30 10:41:12] nikic@php.net The change is intentional. We found that we cannot support the evaluation order in PHP 7.0 in a way that is memory-safe in certain edge-cases, so we had to go back to the previous ordering. (However, evaluation of side-effects will still occur in left-to-right order.) ------------------------------------------------------------------------ [2016-09-30 09:57:48] cmb@php.net Indeed, the behavior changed again as of PHP 7.1.0beta1, see <https://3v4l.org/BPNL3>. Not sure if that is a bug or rather a documentation issue. ------------------------------------------------------------------------ [2016-09-30 09:33:38] yohgaki@php.net Behavior changed between 7.1.0 alpha3 and 7.1.0 beta1. https://3v4l.org/TiMHY ------------------------------------------------------------------------ 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 https://bugs.php.net/bug.php?id=73207 -- Edit this bug report at https://bugs.php.net/bug.php?id=73207&edit=1