Bug #79868 [NEW]: Sorting with array_unique gives unwanted result

From: dries at vints dot io Operating system: macOS Catalina 10.15.5 PHP version: 8.0.0alpha2 Package: *General Issues Bug Type: Bug Bug description:Sorting with array_unique gives unwanted result Description: ------------ Sorting with array_unique returns different results than in previous PHP versions. I suspect this is because of https://wiki.php.net/rfc/stable_sorting If you run the test script from below it'll return the result seeing in https://3v4l.org/9sbAq Test script: --------------- var_dump(array_unique([ 'Illuminate\Routing\Middleware\SubstituteBindings', 'Illuminate\Auth\Middleware\Authorize:edit,post', ], SORT_REGULAR)); Expected result: ---------------- array(2) { [0]=> string(48) "Illuminate\Routing\Middleware\SubstituteBindings" [1]=> string(46) "Illuminate\Auth\Middleware\Authorize:edit,post" } Actual result: -------------- array(2) { [1]=> string(46) "Illuminate\Auth\Middleware\Authorize:edit,post" [0]=> string(48) "Illuminate\Routing\Middleware\SubstituteBindings" } -- Edit bug report at https://bugs.php.net/bug.php?id=79868&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79868&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79868&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79868&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79868&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79868&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79868&r=support Expected behavior: https://bugs.php.net/fix.php?id=79868&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79868&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79868&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79868&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79868&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79868&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79868&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79868&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79868&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79868&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79868&r=mysqlcfg