Bug #77115 [NEW]: The array contains 2 identical keys

From: Date: Tue, 06 Nov 2018 12:56:25 +0000
Subject: Bug #77115 [NEW]: The array contains 2 identical keys
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-217841@lists.php.net to get a copy of this message
From:             boris at korobkov dot su
Operating system: Ubuntu
PHP version:      7.0.32
Package:          Arrays related
Bug Type:         Bug
Bug description:The array contains 2 identical keys

Description:
------------
The array contains 2 identical keys.
Reproduced in all PHP 7.*.
Not reproduced in PHP 5.6.

Test script:
---------------
<?php

class A {
    private $foo = 'fooA';
    public function dump() { return get_object_vars($this); }
}

class B extends A {
    public $foo = 'fooB';
}

$b = new B();
$object_vars = $b->dump();
var_dump($object_vars);

unset($object_vars['foo']);
var_dump($object_vars);

unset($object_vars['foo']);
var_dump($object_vars);

Expected result:
----------------
The array contains unique keys only.

Actual result:
--------------
array(2) {
  ["foo"]=>
  string(4) "fooB"
  ["foo"]=>
  string(4) "fooA"
}

array(1) {
  ["foo"]=>
  string(4) "fooB"
}

array(0) {
}

-- 
Edit bug report at https://bugs.php.net/bug.php?id=77115&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=77115&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=77115&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=77115&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=77115&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=77115&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=77115&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=77115&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=77115&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=77115&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=77115&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=77115&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=77115&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=77115&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77115&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=77115&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=77115&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=77115&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=77115&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=77115&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=77115&r=mysqlcfg



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