#25996 [Ver->Bgs]: Assignment by reference suppress index error
| From: | sniper@php.net | Date: | Wed, 07 Apr 2004 09:49:25 +0000 |
| Subject: | #25996 [Ver->Bgs]: Assignment by reference suppress index error | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-57653@lists.php.net to get a copy of this message | ||
ID: 25996
Updated by: sniper@php.net
Reported By: hongnk at hotmail dot com
-Status: Verified
+Status: Bogus
Bug Type: Zend Engine 2 problem
Operating System: *
PHP Version: 5CVS, 4CVS (2004-03-15)
New Comment:
see above
Previous Comments:
------------------------------------------------------------------------
[2004-03-30 10:00:25] unknown at simplemachines dot org
I would like to say that this is a feature of PHP, and that it is
working as intended. Why?
This simple snippet explains it all:
<?php
$array = array(
'inner' => array(
'another' => array()
)
);
$element = &$array['inner']['another'][];
$element['test'] = 1;
$element['test2'] = 4;
?>
This functionality makes sense, at least in this context. You're
creating a new element, and getting it with the element reference.
This can make things easier and possibly faster to work with - instead
of this:
<?php
$array = array(
'inner' => array(
'another' => array()
)
);
$element['test'] = 1;
$element['test2'] = 4;
$array['inner']['another'][] = $element;
?>
Which is basically the same thing - just in a different order.
I don't think this is a bug, and if it were to be fixed it would cause
a lot of scripts - including ones I've written - to start generating
notices when they shouldn't be. (as I always try to write notice-less
code.)
-[Unknown]
------------------------------------------------------------------------
[2003-10-29 14:13:04] moriyoshi@php.net
Related to bug #26030
------------------------------------------------------------------------
[2003-10-26 21:33:23] hongnk at hotmail dot com
Description:
------------
Accessing array with uninitialized index will normally trigger error:
$a=array();
$b=$a['unknown']; => undefined index error
but if I assign by reference:
$b=&$a['unknown'];
then PHP no longer throw error. (The same goes for assigning undefined
property to an object.)
This makes it difficult to debug scripts.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=25996&edit=1