php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #60552 Nonexistent array element is assigned a value
Submitted: 2011-12-17 22:41 UTC Modified: 2011-12-18 03:34 UTC
From: gmtfn at yahoo dot com Assigned:
Status: Not a bug Package: Arrays related
PHP Version: 5.3.8 OS:
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: gmtfn at yahoo dot com
New email:
PHP Version: OS:

 

 [2011-12-17 22:41 UTC] gmtfn at yahoo dot com 
Description:
------------
In the code sample provided, for some reason, $nonexistentElement gets assigned a value of 5. I'd expect this to trigger an error.

Test script:
---------------
$params = array('search'=>'5');
$nonexistentElement = $params['search']['filter'];

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2011-12-18 03:30 UTC] anon at anon dot anon 
It's an unfortunate quirk but it's not a bug. You're doing string access by character index. The string 'filter' gets parsed as an integer, which yields 0 since it's an invalid number, and the character at index 0 in the string '5' is '5'. See the warning here:
http://www.php.net/manual/en/language.types.string.php#language.types.string.substr
 [2011-12-18 03:34 UTC] laruence@php.net
-Status: Open +Status: Bogus
 [2011-12-18 03:34 UTC] laruence@php.net 
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

pseudo code:
$params['search']['filter'] 
 => 'search'["fileter"]
   => 'search'[0]
    => 's'
 [2011-12-19 02:33 UTC] gmtfn at yahoo dot com 
Thank you both. Because of this, I've switched to using an object in place of an array where I noticed this behavior.

By the way,

The correct pseudo code is:

$params['search']['filter'] 
 => '5'["filter"]
   => '5'[0]
    => '5'
 [2013-02-13 04:25 UTC] james at kenjim dot com 
Related To: Bug #63356
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved. 		Last updated: Thu Nov 21 20:01:29 2024 UTC