Bug #76698 [NEW]: mkdir doesn't handle group write permission with 0770 mode

From: Date: Fri, 03 Aug 2018 10:20:05 +0000
Subject: Bug #76698 [NEW]: mkdir doesn't handle group write permission with 0770 mode
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-216548@lists.php.net to get a copy of this message 
From:             zoeslam at gmail dot com
Operating system: Debian Stretch
PHP version:      7.2.8
Package:          *Directory/Filesystem functions
Bug Type:         Bug
Bug description:mkdir doesn't handle group write permission with 0770 mode

Description:
------------
mkdir($dir, 0770) skips group write permission

https://3v4l.org/pKu4U

Test script:
---------------
$dir = uniqid('/tmp/test_0700_');
mkdir($dir, 0700);
$fileperms = 0777 & fileperms($dir);
var_dump(0700 === $fileperms);
var_dump(decoct($fileperms));

$dir = uniqid('/tmp/test_0770_');
mkdir($dir, 0770);
$fileperms = 0777 & fileperms($dir);
var_dump(0770 === $fileperms);
var_dump(decoct($fileperms));

Expected result:
----------------
bool(true)
string(3) "700"
bool(true)
string(3) "770"

Actual result:
--------------
bool(true)
string(3) "700"
bool(false)
string(3) "750"

-- 
Edit bug report at https://bugs.php.net/bug.php?id=76698&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=76698&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=76698&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=76698&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=76698&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=76698&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=76698&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=76698&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=76698&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=76698&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=76698&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=76698&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=76698&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=76698&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76698&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=76698&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=76698&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=76698&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=76698&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=76698&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=76698&r=mysqlcfg

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