Bug #81692 [Opn->Ver]: array_unique bug

From: Date: Fri, 03 Dec 2021 12:25:04 +0000
Subject: Bug #81692 [Opn->Ver]: array_unique bug
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=81692&edit=1

 ID:                 81692
 Updated by:         cmb@php.net
 Reported by:        stanislav dot eismont at gmail dot com
 Summary:            array_unique bug
-Status:             Open
+Status:             Verified
 Type:               Bug
 Package:            Arrays related
 Operating System:   ubuntu 20.04
 PHP Version:        7.4.26
-Assigned To:        
+Assigned To:        cmb
 Block user comment: N
 Private report:     N

 New Comment:

Indeed, broken as of PHP 7.0.0: <https://3v4l.org/PXQZe>.


Previous Comments:
------------------------------------------------------------------------
[2021-12-03 11:30:02] stanislav dot eismont at gmail dot com

Description:
------------
array_unique returns incorrect result with SORT_REGULAR flag.

Test script:
---------------
<?php
$array = ["red", "color" => "red", 78, 78, 12, "12",
false, null, false, 0, true, 1, 0, null, 2.12, "2.12", 8, "-s"];
var_dump(array_unique($array, SORT_REGULAR));


Expected result:
----------------
Expected one "red" value printed:


array(11) {
  [0]=>
  string(3) "red"

// ...

}

Actual result:
--------------
Actually "red" printed twice:

array(11) {
  [0]=>
  string(3) "red"
  ["color"]=>
  string(3) "red"

// ...

}


------------------------------------------------------------------------



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Edit this bug report at https://bugs.php.net/bug.php?id=81692&edit=1

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