[PHP-BUG] Bug #74344 [NEW]: isset() returns inncorect value

From:             damianboni at gmail dot com
Operating system: ubuntu 16.04.3
PHP version:      7.0.17
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:isset() returns inncorect value

Description:
------------
Tested on PHP7.0.8 ubuntu 16.04.3 @ 2017-03-30

isset() is incorrectly retuning false (should return true) when checking
array key that has its value set to boolean.

I tested the below script on different version of PHP and always get
true with an exception to 7.0.8


Test script:
---------------
Code:
$params['entry']['attributes'] = array(
    'enabled' => true
);

var_dump(isset($params['entry']['attributes']['enabled']));

$whatIsGoingOn = $params['entry']['attributes']['enabled'];

var_dump(isset($whatIsGoingOn));

var_dump(array_key_exists('enabled', $params['entry']['attributes']));

Output:
bool(false) 
bool(true) 
bool(true)

Expected result:
----------------
bool(true) 
bool(true) 
bool(true)

Actual result:
--------------
bool(false) 
bool(true) 
bool(true)

-- 
Edit bug report at https://bugs.php.net/bug.php?id=74344&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=74344&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=74344&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=74344&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=74344&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=74344&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=74344&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=74344&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=74344&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=74344&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=74344&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=74344&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=74344&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=74344&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74344&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=74344&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=74344&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=74344&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74344&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=74344&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=74344&r=mysqlcfg