ID: 40178
Updated by: [EMAIL PROTECTED]
Reported By: bpita at netcombbs dot com
Status: Bogus
Bug Type: *Network Functions
Operating System: Win32, Linux32 and Linux64
PHP Version: 5.2.0
New Comment:
"but I use an internal function of php that returns differents values
depends of my processor architecture ? It's correct ? "
No, it is not correct.
It is the _same_ value. But PHP has only signed integer. A signed
integer can be used to store an unsigned integer. But when you display
it, it thinks that is a negative number.
Try:
echo dechex(ip2long("255.255.255.128"));'
Previous Comments:
------------------------------------------------------------------------
[2007-01-20 04:08:41] bpita at netcombbs dot com
Thanks, for your answer, I try to understand... but I use an internal
function of php that returns differents values depends of my processor
architecture ? It's correct ? Not should be the same and Php be in
charge of this and return alway the same value independently of the 32b
or 64b processor ?
Thanks, Bernardo.
------------------------------------------------------------------------
[2007-01-20 02:15:55] [EMAIL PROTECTED]
(bogus means "Not a bug" here)
This is the internal representation of signed integer using unsigned
integer. 32bits use one bit for the sign, that explains the negative
_displayed_ values, but the internal values are the same.
Big numbers should be processed using bcmath or pecl/big_int
------------------------------------------------------------------------
[2007-01-20 00:50:32] bpita at netcombbs dot com
Description:
------------
Hi,
I use this code in differents operating systems and plataforms (intel
and amd) and return differents results.
It's a bug ? Any comments ?
Thanks, Bernardo.
Reproduce code:
---------------
echo ip2long('255.255.255.128');
echo ip2long('255.255.255.192');
echo ip2long('255.255.255.248');
Expected result:
----------------
32 bits systems returns:
-128
-64
-8
---------------------
64 bits systems returns:
4294967168
4294967232
4294967288
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=40178&edit=1
