note 119219 added to function.uniqid

Here is my approach to generate short string unique id. I am just increasing base of UUID. If you need even shorter keys you may add more chars to $index . When $index gets longer $out will be shorter. <?php function struuid($entropy) { $s=uniqid("",$entropy); $num= hexdec(str_replace(".","",(string)$s)); $index = '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $base= strlen($index); $out = ''; for($t = floor(log10($num) / log10($base)); $t >= 0; $t--) { $a = floor($num / pow($base,$t)); $out = $out.substr($index,$a,1); $num = $num-($a*pow($base,$t)); } return $out; } echo struuid(false); //Return sample: F4518NTQTQ echo struuid(true); //Return sample: F451FAHSUCD90N6YNRBQHLZ9E1W ?> ---- Server IP: 72.52.91.14 Probable Submitter: 88.245.243.72 ---- Manual Page -- http://php.net/manual/en/function.uniqid.php Edit -- https://master.php.net/note/edit/119219 Del: integrated -- https://master.php.net/note/delete/119219/integrated Del: useless -- https://master.php.net/note/delete/119219/useless Del: bad code -- https://master.php.net/note/delete/119219/bad+code Del: spam -- https://master.php.net/note/delete/119219/spam Del: non-english -- https://master.php.net/note/delete/119219/non-english Del: in docs -- https://master.php.net/note/delete/119219/in+docs Del: other reasons-- https://master.php.net/note/delete/119219 Reject -- https://master.php.net/note/reject/119219 Search -- https://master.php.net/manage/user-notes.php