#46037 [Opn]: array_walk not passing third parameter by reference
| From: | bastard dot internets at gmail dot com | Date: | Wed, 10 Sep 2008 06:44:51 +0000 |
| Subject: | #46037 [Opn]: array_walk not passing third parameter by reference | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-128833@lists.php.net to get a copy of this message | ||
ID: 46037
User updated by: bastard dot internets at gmail dot com
-Reported By: bastard dot internets at google dot com
+Reported By: bastard dot internets at gmail dot com
Status: Open
Bug Type: Arrays related
Operating System: ubuntu 8.04 (server)
PHP Version: 5.2CVS-2008-09-10 (snap)
New Comment:
Fixing email contact.
Previous Comments:
------------------------------------------------------------------------
[2008-09-10 05:45:37] bastard dot internets at gmail dot com
Description:
------------
When array_walk function is used inside __construct function of an
object, array_walk allows passing of its third parameter to the user
defined function by reference. This is expected.
In any other case, function, or scope, this parameter cannot be passed
by reference, instead passing by value yet producing no error even when
the user defined function demands passing this third parameter by
reference. Possibly similar to bug 45780, but unlikely due to function
scope behaviour.
Testing on php 5.2.4 (cvs/snap unknown); apache 2.2; ubuntu 8.04
server. PHP packaged with ubuntu 8.04 lamp.
Reproduce code:
---------------
<?php
class ClassTest {
public $val_1 = null;
public $val_2 = null;
function __construct($array) {
$class_test_array = array("val_1" => 1, "val_2" => 2, "val_3"
=> 3);
array_walk($class_test_array,create_function('$v,$k,&$that','if
(property_exists($that,$k)) {$that->$k = $v;}'),$this);
}
}
function alter_test_array($val, $key, &$test_array) {
$test_array[] = $val;
}
$class_test_obj = new ClassTest();
$normal_test_array_1 = array(1,2,3);
$normal_test_array_2 = array();
$normal_test_array_3 = array();
array_walk($normal_test_array_1,
create_function('$val,$key,&$test_array', '$test_array[] = $val;'),
$normal_test_array_2);
array_walk($normal_test_array_1, alter_test_array,
$normal_test_array_3);
Expected result:
----------------
$class_test_obj === object(1,2)
$normal_test_array_2 === array(1,2,3)
$normal_test_array_3 === array(1,2,3)
Actual result:
--------------
$class_test_obj === object(1,2)
$normal_test_array_2 === array(0)
$normal_test_array_3 === array(0)
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=46037&edit=1