note 84889 added to language.types.integer
| From: | rustamabd at gmail dot com | Date: | Mon, 04 Aug 2008 11:45:17 +0000 |
| Subject: | note 84889 added to language.types.integer | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-143131@lists.php.net to get a copy of this message | ||
Be very careful with code that relies on integer overflow. Negative overflow is handled differently
on different platforms. For example, this code:
<?php
echo (int)-3000000000; // a 32bit negative overflow
?>
... outputs 1294967296 on Windows, and -2147483648 on FreeBSD.
(Tested with php 5.2.6, freebsd 7.0)
----
Server IP: 69.147.83.197
Probable Submitter: 82.242.159.72
----
Manual Page -- http://www.php.net/manual/en/language.types.integer.php
Edit -- https://master.php.net/note/edit/84889
Del: integrated -- https://master.php.net/note/delete/84889/integrated
Del: useless -- https://master.php.net/note/delete/84889/useless
Del: bad code -- https://master.php.net/note/delete/84889/bad+code
Del: spam -- https://master.php.net/note/delete/84889/spam
Del: non-english -- https://master.php.net/note/delete/84889/non-english
Del: in docs -- https://master.php.net/note/delete/84889/in+docs
Del: other reasons-- https://master.php.net/note/delete/84889
Reject -- https://master.php.net/note/reject/84889
Search -- https://master.php.net/manage/user-notes.php