php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #16568 string comparison features give opposing results
Submitted: 2002-04-12 10:46 UTC Modified: 2002-04-12 11:32 UTC
From: lent at fstrf dot org Assigned:
Status: Not a bug Package: Strings related
PHP Version: 4.1.2 OS: SunOS 5.6
Private report: No CVE-ID: None
View Add Comment Developer Edit
Welcome! If you don't have a Git account, you can't do anything here.
You can add a comment by following this link or if you reported this bug, you can edit this bug over here.
(description)
Block user comment
Status: Assign to:
Package:
Bug Type:
Summary:
From: lent at fstrf dot org
New email:
PHP Version: OS:

 

 [2002-04-12 10:46 UTC] lent at fstrf dot org
NOTE: in the examples below the $myrow array is a string array populated by an ingres select statement.

if $myrow[6] is null going into the first example then 
$myrow[6] will not be set to &npsp, but in the second example it will.  Shouldn't these two examples be equivalent?  Also strcmp function behaves like example 1.


EXAMPLE 1:

trim($myrow[6]);
($myrow[6]) == " " ? $myrow[6] = " ")

EXAMPLE 2:

trim($myrow[6]);
(ord($myrow[6]) == 32 ? $myrow[6] = " ");


Patches

Add a Patch

Pull Requests

Add a Pull Request

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2002-04-12 11:11 UTC] sniper@php.net
The bug system is not the appropriate forum for asking support
questions. For a list of a range of more appropriate places to ask
for help using PHP, please visit http://www.php.net/support.php
 [2002-04-12 11:16 UTC] lent at fstrf dot org
I'm not asking a support question.

$myrow[6] is an empty string.

ord($myrow[6]) returns 32 (ascii for ' ')

the first character of an empty string shouldn't evaluate as ascii 32.  So this is a bug.
 [2002-04-12 11:32 UTC] sander@php.net
$myrow[6] is not an empty string because you're trim()'ing the string incorrectly. See http://www.php.net/manual/en/function.trim.php
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved.
Last updated: Thu Mar 28 16:01:29 2024 UTC