PHP :: Request #31302 :: empty() shouldn't count ' ', '\n', etc

Request #31302	empty() shouldn't count ' ', '\n', etc
Submitted:	2004-12-26 07:43 UTC	Modified:	2004-12-27 00:57 UTC
From:	aitrus at tresgeek dot net	Assigned:
Status:	Wont fix	Package:	Feature/Change Request
PHP Version:	4.3.10	OS:
Private report:	No	CVE-ID:	None

[2004-12-26 07:43 UTC] aitrus at tresgeek dot net

Description:
------------
I thought that this used to be the behavior of empty()...

It would be nice of empty() returned true when passed a string which only had spaces, tabs, or newline characters in it.


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

if ( empty( $foo ) ) {
  echo "foo is empty";
} else {
  echo "foo is NOT empty";
}//if

---

output is: 'foo is NOT empty'

Expected result:
----------------
expected output: 'foo is empty'

Patches

Pull Requests

History

[2004-12-26 11:32 UTC] derick@php.net

We can't change this due to BC reasons, also, it doesn't fit a particular language construct (empty is NOT a function!)

[2004-12-27 00:57 UTC] aitrus at tresgeek dot net

I realize it isn't a function (took a couple time of saying empty( someFn( ) ) to get that through to me)... I haven't, however, looked at the source for empty() so I'm don't know what it's BC is (or what the issue is).

The issue I run into is one of (html) input validation.  With the behavior of trim() (per our short conversation on bug #31302) it doesn't seem that there is a clean, efficient way of checking for people entering a string of spaces or non-breaking spaces (&nbsp;) in the place of legit input.

Am I missing something completely?

	php.net \| support \| documentation \| report a bug \| advanced search \| search howto \| statistics \| random bug \| login
go to bug id or search bugs for


Copyright © 2001-2024 The PHP Group All rights reserved.	Last updated: Mon May 06 13:01:31 2024 UTC