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

go to bug id or search bugs for

Bug #62492 dba_firstkey & dba_nextkey retuns NULL (instead false) on invalid dba resource
Submitted: 2012-07-06 09:08 UTC Modified: 2013-12-03 14:44 UTC
From: marc-bennewitz at arcor dot de Assigned:
Status: Not a bug Package: DBM/DBA related
PHP Version: 5.4.4 OS: openSUSE 11.3 (x86_64)
Private report: No CVE-ID: None
View Developer Edit
Welcome! If you don't have a Git account, you can't do anything here.
If you reported this bug, you can edit this bug over here.
(description)
Block user comment
Status: Assign to:
Package:
Bug Type:
Summary:
From: marc-bennewitz at arcor dot de
New email:
PHP Version: OS:

 

 [2012-07-06 09:08 UTC] marc-bennewitz at arcor dot de 
Description:
------------
The functions "dba_firstkey" & "dba_nextkey" retuns NULL (instead of false) on invalid dba resource.
It's documented as "Returns the key on success or FALSE on failure."
That can result in an infinite loop on iterate over items.

Test script:
---------------
$dba = false;

var_dump(dba_firstkey($dba));
var_dump(dba_nextkey($dba));

Expected result:
----------------
PHP Warning:  dba_firstkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 5

Warning: dba_firstkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 5
boolean(false)
PHP Warning:  dba_nextkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 6

Warning: dba_nextkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 6
boolean(false)

Actual result:
--------------
PHP Warning:  dba_firstkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 5

Warning: dba_firstkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 5
NULL
PHP Warning:  dba_nextkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 6

Warning: dba_nextkey() expects parameter 1 to be resource, boolean given in /tmp/dba_firstkey_nextkey.php on line 6
NULL

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2013-12-03 14:44 UTC] mike@php.net
-Status: Open +Status: Not a bug
 [2013-12-03 14:44 UTC] mike@php.net 
It's convention that functions return NULL on invalid arguments.

See the note here: http://php.net/manual/en/functions.internal.php
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Mon Mar 10 21:01:30 2025 UTC