Re: bit wise math? Is there a function to easily return the bits?

From:	Jon Anderson	Date:	Thu, 25 Jan 2007 19:34:51 +0000
Subject:	Re: bit wise math? Is there a function to easily return the bits?
References:	1	Groups:	php.general
Request:	Send a blank email to php-general+get-247792@lists.php.net to get a copy of this message

function bits($num) {

       $bit_array = str_split(strrev(decbin(intval($num))));
       $val_array = array();
       foreach ($bit_array as $pow => $bit) {
               if ($val = $bit * pow(2,$pow))
                       $val_array[] = $val;
       }
       return($val_array);

} (I wanted to see if I could write it in few LOC.) I wonder if there's a faster way... jon blackwater dev wrote:

Is there a php function I can call to pass in a number and get the values returned? For example, pass in 7 and get 1,2,4 ? Thanks!