Bug #54592 [Opn->Bgs]: is_bool provides wrong result when running inside a switch
| From: | dtajchreber@php.net | Date: | Fri, 22 Apr 2011 15:00:52 +0000 |
| Subject: | Bug #54592 [Opn->Bgs]: is_bool provides wrong result when running inside a switch | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-160335@lists.php.net to get a copy of this message | ||
Edit report at http://bugs.php.net/bug.php?id=54592&edit=1
ID: 54592
Updated by: dtajchreber@php.net
Reported by: kadmio007 at hotmail dot com
Summary: is_bool provides wrong result when running inside a
switch
-Status: Open
+Status: Bogus
Type: Bug
Package: Variables related
Operating System: Ubuntu Linux 10.10
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Not quite... is_bool($var) evaluates to true; $var is false... false
doesn't match
that case. is_numeric($var) evaluates to false. $var == is_numeric($var)
hence
'number' is printed.
Another view:
var_dump($var != is_bool($var));
var_dump($var == is_numeric($var));
Previous Comments:
------------------------------------------------------------------------
[2011-04-22 16:39:36] kadmio007 at hotmail dot com
Description:
------------
Whenever testing for a variable with the value false using is_bool
inside a switch statement will return false instead of true.
I have tested it with different php versions, it happened on all of
them.
Test script:
---------------
echo phpversion();
$var = false;
switch ($var) {
case is_bool($var):
echo "boolean";
break;
case is_numeric($var):
echo "number";
break;
}
if (is_bool($var))
echo "boolean";
elseif (is_numeric($var))
echo "number";
Expected result:
----------------
5.3.4booleanboolean
Actual result:
--------------
5.3.4numberboolean
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=54592&edit=1