Edit report at https://bugs.php.net/bug.php?id=60402&edit=1
ID: 60402
User updated by: alagar86 at gmail dot com
Reported by: alagar86 at gmail dot com
Summary: "0.0" (0.0 as a string) values are considered as not
empty
Status: Bogus
Type: Bug
Package: *General Issues
Operating System: Windows/Linux
PHP Version: 5.3.8
Block user comment: N
Private report: N
New Comment:
I agree that manual doesn't say about "0.0" (a string). But we have the
following situation:
$zeroFloatString = "0.0"; (0.0 as a string)
$zeroFloat = 0.0; (0 as a float)
var_dump($zeroFloatString == $zeroFloat); // true
var_dump(empty($zeroString)); true
var_dump(empty($zeroFloatString)); false
I think it isn't normal. If A == B, why f(A) != f(B) ?
Previous Comments:
------------------------------------------------------------------------
[2011-11-30 16:36:48] [email protected]
The manual says 0.0 (i.e. the same as 0., or (float) 0), not "0.0" (a string).
Closing as bogus.
------------------------------------------------------------------------
[2011-11-28 14:44:36] alagar86 at gmail dot com
Description:
------------
Hi PHP team.
For empty() we have the following rule :
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
But values like "0.0" are cosidered as not empty for example :
$zeroFloatString = "0.0"; (0.0 as a string)
var_dump(empty($zeroFloatString)); prints false . However the
$zeroFloatString contains "0.0" value.
Thanks,
Anton
Test script:
---------------
$emptyString = ""; (an empty string)
$zeroInt = 0; (0 as an integer)
$zeroFloat = 0.0; (0 as a float)
$zeroString = "0"; (0 as a string)
$zeroFloatString = "0.0"; (0.0 as a string)
var_dump(empty($emptyString)); true
var_dump(empty($zeroInt)); true
var_dump(empty($zeroFloat)); true
var_dump(empty($zeroString)); true
var_dump(empty($zeroFloatString)); false
Expected result:
----------------
bool(true)
bool(true)
bool(true)
bool(true)
bool(true)
Actual result:
--------------
bool(true)
bool(true)
bool(true)
bool(true)
bool(false) // var_dump(empty($zeroFloatString)) where $zeroFloatString =
"0.0"
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=60402&edit=1
