note 113079 deleted from function.crc32 by peehaa
| From: | peehaa@php.net | Date: | Thu, 29 Aug 2013 10:18:15 +0000 |
| Subject: | note 113079 deleted from function.crc32 by peehaa | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-196116@lists.php.net to get a copy of this message | ||
Note Submitter: rasmus at mindplay dot dk
----
Your best bet for consistent behavior across 32/64-bit platforms (and Windows) is the lowest common
denominator: force the return value of crc32() into a signed 32-bit integer, e.g.:
var_dump(unpack('l', pack('l', crc32('123456789_00_0'))));
This looks idiotic, but it gives you a consistent signed integer value on all platforms.
(that's a lower-case "L" for both arguments, if that happens looks like the number
"1" on your screen.)