Bug #70289 [Opn]: Different sort in php7 (and hhvm) compared to php5

Edit report at https://bugs.php.net/bug.php?id=70289&edit=1 ID: 70289 Updated by: cweiske@php.net Reported by: kjarli at gmail dot com Summary: Different sort in php7 (and hhvm) compared to php5 Status: Open Type: Bug Package: Testing related Operating System: Ubuntu 14.04 PHP Version: 7.0.0beta3 Block user comment: N Private report: N New Comment: I saw the same in the PEAR core unit tests. This only happens when the elements are equal. Since they are equal, the order of the elements is unspecified and dependent on the internal implementation and the sort algorithm. Not a bug in my eyes. Previous Comments: ------------------------------------------------------------------------ [2015-08-18 08:08:13] kjarli at gmail dot com Description: ------------ I haven't gotten a proper test setup, but I do have the travis builds. I was working on a priority sorting feature and I had added a test to verify sort orders. On php5 it consistently went right, but on php7 and hhvm it was in reversed order. I fixed it by adding a secondary sort (strcmp). Build #45 (failed): https://travis-ci.org/iltar/http-bundle/builds/76059069 Build #46 (failed): https://travis-ci.org/iltar/http-bundle/builds/76061283 Build #47 (fixed): https://travis-ci.org/iltar/http-bundle/builds/76062321 The test in question: https://github.com/iltar/http-bundle/blob/feature/property-accessor/test/DependencyInjection/DecorateRouterPassTest.php#L72-L112 It's about the one with a priority of 50, which is reversed as you can see in the failed output. Test script: --------------- https://github.com/iltar/http-bundle/blob/feature/property-accessor/test/DependencyInjection/DecorateRouterPassTest.php#L72-L112 Expected result: ---------------- I expect to see consistent sorting, but that was not the case. sequence: app.henk2_50 app.henk_50 Actual result: -------------- sequence: app.henk_50 app.henk2_50 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70289&edit=1