Edit report at http://bugs.php.net/bug.php?id=54943&edit=1
ID: 54943
Updated by: d...@php.net
Reported by: dtrenz at gmail dot com
Summary: Array_merge links resulting array to source arrays
by reference.
-Status: Open
+Status: Bogus
Type: Bug
Package: *General Issues
Operating System: Mac OSX
PHP Version: 5.3.6
Block user comment: N
Private report: N
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
they both hold the same reference:
http://www.php.net/manual/en/language.oop5.references.php
Previous Comments:
------------------------------------------------------------------------
[2011-05-27 19:41:16] dtrenz at gmail dot com
Description:
------------
When using array_merge() on an array of objects, the resulting array is linked
to
the source array(s) as if passed by reference so that modifying the resulting
array after the merge ALSO modifies the source array.
Test script:
---------------
<?php
$obj = (object) null;
$obj->name = 'Bob';
$arrA = array();
$arrB = array($obj); // name = "Bob"
$arrA = array_merge($arrA, $arrB);
// Change name property of first element
$arrA[0]->name = 'Joe';
print_r($arrA); // name = "Joe"
print_r($arrB); // name = "Joe"; source array was modified, should still be
"Bob
Expected result:
----------------
Array
(
[0] => stdClass Object
(
[name] => Joe
)
)
Array
(
[0] => stdClass Object
(
[name] => Bob
)
)
Actual result:
--------------
Array
(
[0] => stdClass Object
(
[name] => Joe
)
)
Array
(
[0] => stdClass Object
(
[name] => Joe
)
)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=54943&edit=1
