Bug #72234 [NEW]: Calling foreach on non-array is ignored

From: Date: Tue, 17 May 2016 20:13:09 +0000
Subject: Bug #72234 [NEW]: Calling foreach on non-array is ignored
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-201163@lists.php.net to get a copy of this message 
From:             nickdnk at hotmail dot com
Operating system: Windows
PHP version:      7.0.6
Package:          *General Issues
Bug Type:         Bug
Bug description:Calling foreach on non-array is ignored

Description:
------------
Hello

If passing a variable (let's say a stdClass) to the foreach method, it
does not produce an error. It silently does not loop the object (since
it cannot).

I'm no expert, but I'd say that at least a warning should be raised if
trying to iterate a non-array object. I'm sorry if this is intentional,
but I do believe an error was raised in 5.6.


Test script:
---------------
$obj = new stdClass();

foreach ($obj as $anObj) {
    error_log("nothing is output here, obviously, but no error
either");
}

Expected result:
----------------
I expect an error or warning to occur, since I'm traversing a non-array.

Actual result:
--------------
Nothing happens at all.

-- 
Edit bug report at https://bugs.php.net/bug.php?id=72234&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=72234&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=72234&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=72234&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=72234&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=72234&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=72234&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=72234&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=72234&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=72234&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=72234&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=72234&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=72234&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=72234&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72234&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=72234&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=72234&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=72234&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=72234&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=72234&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=72234&r=mysqlcfg

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