note 102272 added to function.sqrt

netmask and wietse89: you can use log() to achieve it:

<?php
$result = log(256, 2);
echo $result;
/*
 * Output: 8
 */
?>

And log() always returns float.
----
Server IP: 69.147.83.197
Probable Submitter: 189.71.221.241
----
Manual Page -- http://www.php.net/manual/en/function.sqrt.php
Edit        -- https://master.php.net/note/edit/102272
Del: integrated  -- https://master.php.net/note/delete/102272/integrated
Del: useless     -- https://master.php.net/note/delete/102272/useless
Del: bad code    -- https://master.php.net/note/delete/102272/bad+code
Del: spam        -- https://master.php.net/note/delete/102272/spam
Del: non-english -- https://master.php.net/note/delete/102272/non-english
Del: in docs     -- https://master.php.net/note/delete/102272/in+docs
Del: other reasons-- https://master.php.net/note/delete/102272
Reject      -- https://master.php.net/note/reject/102272
Search      -- https://master.php.net/manage/user-notes.php