From:
Operating system: Debian Squeeze, 64-bit
PHP version: 5.3.10
Package: Arrays related
Bug Type: Bug
Bug description:array_merge() does only merge references of objects
Description:
------------
I'm not sure, if this is a bug or a desired behaviour that is not mentioned
in the docs. When merging an array with itself with array_merge() then
modifiying one array element afterwards does also affect all other
elements.
If it's intentional, then it should be mentionend in the documentation.
Test script:
---------------
<?php
$items = array();
$items[] = (object) array(
'year' => 2012,
'desc' => 'something happens'
);
$many = array_merge($items, $items);
print_r($many);
$many[0]->year = 2040;
print_r($many); // changes also year of $many[1]
Expected result:
----------------
$many[0]->year should be 2040
$many[1]->year should be 2012
Actual result:
--------------
$many[0]->year is 2040
$many[1]->year is 2040
--
Edit bug report at https://bugs.php.net/bug.php?id=61299&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=61299&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=61299&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=61299&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=61299&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=61299&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=61299&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=61299&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=61299&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=61299&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=61299&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=61299&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=61299&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=61299&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=61299&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=61299&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=61299&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=61299&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=61299&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=61299&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=61299&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=61299&r=mysqlcfg
