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

go to bug id or search bugs for

Bug #31301 trim() does not trim single whitespace variables
Submitted: 2004-12-26 07:36 UTC Modified: 2004-12-26 20:36 UTC
From: aitrus at tresgeek dot net Assigned:
Status: Not a bug Package: Strings related
PHP Version: 4.3.10 OS: Linux
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: aitrus at tresgeek dot net
New email:
PHP Version: OS:

 

 [2004-12-26 07:36 UTC] aitrus at tresgeek dot net 
Description:
------------
When passed a string variable with a single space as its contents, trim() returns a variable with a single space as its contents.

Reproduce code:
---------------
$foo = " ";

$foo = trim( $foo );

echo "x{$foo}x";

--

output is: 'x x'

Expected result:
----------------
trim() should return a empty string (or false).

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2004-12-26 07:44 UTC] aitrus at tresgeek dot net 
updated OS
 [2004-12-26 11:34 UTC] derick@php.net 
Works fine here:
derick@kossu:~$ cat bug31301.php
<?php
$foo = " ";

$foo = trim( $foo );

echo "x{$foo}x";
?>

derick@kossu:~$ php-4.3dev bug31301.php
xx
 [2004-12-26 18:34 UTC] aitrus at tresgeek dot net 
I apologize, my example was too simple and did not reproduce the problem:

$foo = "&nbsp;";

$foo = html_entity_decode( $foo, ENT_QUOTES );
$foo = trim( $foo );

echo "x{$foo}x";

output is:  'x x'
 [2004-12-26 20:28 UTC] derick@php.net 
Still not a bug :)
&nbsp; gets converted not to a space (ascii 32) but to a non breaking space, which matches to ascii 160. And that character is not always a non breaking space in every character set so trim() should not trim it by default.
 [2004-12-26 20:36 UTC] aitrus at tresgeek dot net 
grr!

thanks for your time.  =)
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Mon Jul 07 10:01:34 2025 UTC