From:
Operating system: Ubuntu 10.10
PHP version: 5.3SVN-2011-03-17 (SVN)
Package: Arrays related
Bug Type: Bug
Bug description:array_unshift and multidimension arrays bug
Description:
------------
When using array_unshift() on multidimension arrays there is a bug when
index in array does not exists. When you have array with arrays inside like
this:
$arr = array(
array('ddddd'),
array('eeee'),
array('ffff'),
array('gggg'),
);
and you use:
array_unshift($arr[4], 4);
this function not only show you warning message, but also add one element
with null value to the end (!) of $arr array. It should not be working like
that. It should show a warning and do nothing.
My version of PHP:
piotrekkr@piotrekkr-desktop:/var/www$ php -v
PHP 5.3.3-1ubuntu9.3 with Suhosin-Patch (cli) (built: Jan 12 2011 16:07:38)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
OS: Ubuntu 10.10
Test script:
---------------
<?php
$arr = array(
array('ddddd'),
array('eeee'),
array('ffff'),
array('gggg'),
);
array_unshift($arr[4], 4);
print_r($arr);
Expected result:
----------------
PHP Warning: array_unshift() expects parameter 1 to be array, null given
in /var/www/unshift_test.php on line 9
Array
(
[0] => Array
(
[0] => ddddd
)
[1] => Array
(
[0] => eeee
)
[2] => Array
(
[0] => ffff
)
[3] => Array
(
[0] => gggg
)
)
Actual result:
--------------
PHP Warning: array_unshift() expects parameter 1 to be array, null given
in /var/www/unshift_test.php on line 9
Array
(
[0] => Array
(
[0] => ddddd
)
[1] => Array
(
[0] => eeee
)
[2] => Array
(
[0] => ffff
)
[3] => Array
(
[0] => gggg
)
[4] =>
)
--
Edit bug report at http://bugs.php.net/bug.php?id=54288&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=54288&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=54288&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=54288&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=54288&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=54288&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=54288&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=54288&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=54288&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=54288&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=54288&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=54288&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=54288&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=54288&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=54288&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54288&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54288&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=54288&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=54288&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=54288&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=54288&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=54288&r=mysqlcfg
