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Bug #36967 ip2long returns unsigned long instead of signed long
Submitted: 2006-04-04 15:39 UTC Modified: 2006-04-04 16:36 UTC
From: php at cakkie dot be Assigned:
Status: Not a bug Package: Unknown/Other Function
PHP Version: 4.4.2 OS: Linux Gentoo
Private report: No CVE-ID: None
View Developer Edit
 [2006-04-04 15:39 UTC] php at cakkie dot be 
Description:
------------
I'm using the same code on 2 servers.

One server is a 2.6.6 debian with PHP 4.3.10
This one returns a signed long (as it should according to the documentation)

The other server is a 2.6.14 Gentoo with PHP 4.4.0
This one returns an unsigned long (not what it should be)

Since I didn't find any bugreport, nor other information regarding this behaviour, I decided to post a bug.

As a reference, I have an example, along with phpinfo() running at both servers:
correct: http://www.funpages.be/index.php
incorrect: http://www.factsoflife.be/cakkie/index.php


Reproduce code:
---------------
echo ip2long('217.136.232.103');

Expected result:
----------------
-645339033


Actual result:
--------------
3649628263

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 [2006-04-04 16:36 UTC] derick@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

It's actually correct as your 2nd machine is a 64bit machine, where PHP's integers are also 64bit. To make this portable, use sprintf("%u", ip2long(....));
 
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