#39062 [Opn->Bgs]: crc32() returns 64-bit number on 64-bit achitectures
| From: | tony2001@php.net | Date: | Fri, 06 Oct 2006 13:36:04 +0000 |
| Subject: | #39062 [Opn->Bgs]: crc32() returns 64-bit number on 64-bit achitectures | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-103194@lists.php.net to get a copy of this message | ||
ID: 39062
Updated by: tony2001@php.net
Reported By: ivoras at yahoo dot com
-Status: Open
+Status: Bogus
Bug Type: Variables related
Operating System: FreeBSD
PHP Version: 5.1.6
New Comment:
Use dechex(crc32('10780')) to get string value, which is the same on
all architectures.
The integer value differs because of obvious reasons.
Previous Comments:
------------------------------------------------------------------------
[2006-10-06 13:09:43] ivoras at yahoo dot com
Description:
------------
crc32() in PHP returns an integer larger than 2G on a 64-bit platform;
It's documented, and applications rely on it, that it will return a
signed integer from the range [-2G .. 2G]. The major problem with
64-bit crc32() here is that databases can't store the value in a column
declared as INTEGER, thus braking compatibility.
Reproduce code:
---------------
echo crc32('10780');
Expected result:
----------------
-1171594808
Actual result:
--------------
3123372488
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=39062&edit=1