note 92965 added to function.sqrt

/* My little function to get the x'th square root of a value * Example: second square root of 256 = 8 [reverse: pow(2,8) = 256] */ function xsqrt($x, $value) { $count = 0; do{ $value=$value/$x; $count++; }while($value>=$x); return $count; } /* Example ip subnet: */ $net_size = 256; $subnet = 32 - xsqrt(2, $net_size); echo '/' . $subnet; /* returns: /24 */ ---- Server IP: 69.147.83.197 Probable Submitter: 81.89.251.73 ---- Manual Page -- http://www.php.net/manual/en/function.sqrt.php Edit -- https://master.php.net/note/edit/92965 Del: integrated -- https://master.php.net/note/delete/92965/integrated Del: useless -- https://master.php.net/note/delete/92965/useless Del: bad code -- https://master.php.net/note/delete/92965/bad+code Del: spam -- https://master.php.net/note/delete/92965/spam Del: non-english -- https://master.php.net/note/delete/92965/non-english Del: in docs -- https://master.php.net/note/delete/92965/in+docs Del: other reasons-- https://master.php.net/note/delete/92965 Reject -- https://master.php.net/note/reject/92965 Search -- https://master.php.net/manage/user-notes.php