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

go to bug id or search bugs for

Bug #41708 error on comparission
Submitted: 2007-06-15 19:50 UTC Modified: 2007-06-15 23:48 UTC
From: killton at gmail dot com Assigned:
Status: Not a bug Package: Strings related
PHP Version: 5.2.3 OS: LINUX
Private report: No CVE-ID: None
View Developer Edit
 [2007-06-15 19:50 UTC] killton at gmail dot com 
Description:
------------
When i do a comparission between a number and an empty string

Reproduce code:
---------------
$var = ''

if (0 == $var)
    echo "This is bad";
else
    echo "do some";


Expected result:
----------------
An empty string should not be equals to 0

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2007-06-15 23:48 UTC] scottmac@php.net 
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.


The second operand is converted to the first operand type, in this case the string '' is converted to an integer, as there are no numeric parts of '', as it needs to be some sort of value it is assigned 0.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Thu Oct 30 08:00:01 2025 UTC