Better way to count bits set in an integer?
| From: | Jim McIntyre | Date: | Thu, 23 Mar 2006 13:46:10 +0000 |
| Subject: | Better way to count bits set in an integer? | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-232450@lists.php.net to get a copy of this message | ||
Hi,
Is there a better/more efficient way to determine how many bits are set in an integer than this?
substr_count(base_convert($myValue, 10, 2), '1');
I'm using PHP 4.
Thanks,
Jim