Bug #68897 [Asn->Csd]: Using variable for sort flag in array_multisort cause wrong results

Edit report at https://bugs.php.net/bug.php?id=68897&edit=1 ID: 68897 Updated by: laruence@php.net Reported by: jrbasso at gmail dot com Summary: Using variable for sort flag in array_multisort cause wrong results -Status: Assigned +Status: Closed Type: Bug Package: Arrays related Operating System: Linux PHP Version: master-Git-2015-01-24 (Git) Assigned To: laruence Block user comment: N Private report: N New Comment: Automatic comment on behalf of laruence Revision: http://git.php.net/?p=php-src.git;a=commit;h=a98fd7125ac9165822fa34a01e35a97a2076c3b9 Log: Fixed bug #68897 (Using variable for sort flag in array_multisort cause wrong results) Previous Comments: ------------------------------------------------------------------------ [2015-01-24 12:35:00] kalle@php.net I think the behavior was undefined, right Laruence? ------------------------------------------------------------------------ [2015-01-24 05:51:13] jrbasso at gmail dot com Description: ------------ Using master rev. be5337421680f059f7b23dd530645e070b15715a the array_multisort have incorrect behavior if the SORT direction flag is passed in a variable. This behavior is ok on HHVM and until PHP 5.6. See http://3v4l.org/7pU0u Test script: --------------- // Works $values = array("Lindsay", "Nate"); array_multisort($values, SORT_DESC, SORT_REGULAR, array(0, 1), SORT_DESC, SORT_REGULAR); var_dump($values); // Doesn't work $values = array("Lindsay", "Nate"); $dir = SORT_DESC; array_multisort($values, $dir, SORT_REGULAR, array(0, 1), $dir, SORT_REGULAR); var_dump($values); Expected result: ---------------- array(2) { [0]=> string(4) "Nate" [1]=> string(7) "Lindsay" } array(2) { [0]=> string(4) "Nate" [1]=> string(7) "Lindsay" } Actual result: -------------- array(2) { [0]=> string(4) "Nate" [1]=> string(7) "Lindsay" } array(2) { [0]=> string(7) "Lindsay" [1]=> string(4) "Nate" } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68897&edit=1