note 70638 deleted from function.decbin by tularis
| From: | tularis@php.net | Date: | Mon, 23 Oct 2006 08:37:43 +0000 |
| Subject: | note 70638 deleted from function.decbin by tularis | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-118991@lists.php.net to get a copy of this message | ||
Note Submitter: info at duriel dot net
Reason: useless
----
This simple function checks if a number is a potency of 2:
<?php
function potency ($number) {
return substr_count(decbin($number),'1') == 1 ? true : false;
}
?>
Sometimes useful.