[PHP-BUG] Bug #68402 [NEW]: PHP reference changes last item of array

From:             villeviitaharju at gmail dot com
Operating system: Windows 7
PHP version:      5.5.18
Package:          PHP Language Specification
Bug Type:         Bug
Bug description:PHP reference changes last item of array

Description:
------------
Scenario:
foreach with value as reference

function which has foreach with value as reference and returns array

last item of unmodified array changes to modified array item

namechanges doesn't change scenario.

Test script:
---------------
$bar = [["object_name" => "first"], ["object_name" => "second"]];
foreach($bar as &$b) $b["object_name"] .= " foo";

function foo($bar){
    foreach($bar as &$o) $o["object_name"] = "bar " .
$o["object_name"];
    return $bar;
}

function echoObjects($bar) {
    foreach($bar as $o) echo $o["object_name"] . "<br />";
    echo "<br />";
}

echoObjects($bar);
echoObjects(foo($bar));
echoObjects($bar); //extra bar on last item

Expected result:
----------------
first foo
second foo
 
bar first foo
bar second foo
 
first foo
second foo

Actual result:
--------------
first foo
second foo

bar first foo
bar second foo

first foo
bar second foo

-- 
Edit bug report at https://bugs.php.net/bug.php?id=68402&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=68402&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=68402&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=68402&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=68402&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=68402&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=68402&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=68402&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=68402&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=68402&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=68402&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=68402&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=68402&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=68402&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68402&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=68402&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=68402&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=68402&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68402&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=68402&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=68402&r=mysqlcfg