Bug #71359 [NEW]: Coalescing operator on classes with overridden __get() method

From: Date: Wed, 13 Jan 2016 14:57:52 +0000
Subject: Bug #71359 [NEW]: Coalescing operator on classes with overridden __get() method
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-198626@lists.php.net to get a copy of this message 
From:             kostasxx at gmail dot com
Operating system: Linux 4.1.13
PHP version:      7.0.2
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:Coalescing operator on classes with overridden __get() method

Description:
------------
The issue appears when using the new null coalescing operator on object
parameters, when the defined class has override the magic __get() and an
error is triggered inside it.

The script runs the __get() method and not the __isset(), so the error
on __get() is triggered when the operator is used.

Test script:
---------------
http://www.pastebucket.com/97499

Expected result:
----------------
The expexted result should be not to trigger the error within the
__get() method

GET
string(6) "value1"
GET
string(7) "default"

Actual result:
--------------
The error is triggered

GET
string(6) "value1"
GET
PHP Notice:  Property attribute2 does not exist in
/var/www/html/test.php on line 23
PHP Stack trace:
PHP   1. {main}() /var/www/html/test.php:0
PHP   2. Coalescing->__get() /var/www/html/test.php:41
PHP   3. trigger_error() /var/www/html/test.php:23
/var/www/html/test.php:41:
string(7) "default"

-- 
Edit bug report at https://bugs.php.net/bug.php?id=71359&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=71359&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=71359&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=71359&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=71359&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=71359&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=71359&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=71359&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=71359&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=71359&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=71359&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=71359&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=71359&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=71359&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71359&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=71359&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=71359&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=71359&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=71359&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=71359&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=71359&r=mysqlcfg

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