note 15810 deleted from language.operators.bitwise by sniper
| From: | sniper@php.net | Date: | Mon, 13 Oct 2003 00:11:02 +0000 |
| Subject: | note 15810 deleted from language.operators.bitwise by sniper | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-58400@lists.php.net to get a copy of this message | ||
Note Submitter: frk@dagbladet.no
----
Here are two functions to count number of bits who are set in a variable.
function bit_count($num) {
return strlen(str_replace('0','',decbin($num)));
}
function bit_count($value){
return ((count(split('1',decbin($value))))-1);
}