note 79528 added to function.microtime

> lloeki > 26-Nov-2007 02:45 > You want some unique alphanum identifier? no need for some weird loop of sort. > > <?php > $id = md5(microtime()); > ?> microtime() does not return a unique value, the chances of two people getting the same result from said function may be astronomical, but it is still possible. This is a much better alternative: <? $id = md5(uniqid('')); // Passing an empty string to uniqid() makes PHP < 5 happy. ?> ---- Server IP: 209.41.74.194 Probable Submitter: 207.224.195.213 ---- Manual Page -- http://www.php.net/manual/en/function.microtime.php Edit -- https://master.php.net/note/edit/79528 Del: integrated -- https://master.php.net/note/delete/79528/integrated Del: useless -- https://master.php.net/note/delete/79528/useless Del: bad code -- https://master.php.net/note/delete/79528/bad+code Del: spam -- https://master.php.net/note/delete/79528/spam Del: non-english -- https://master.php.net/note/delete/79528/non-english Del: in docs -- https://master.php.net/note/delete/79528/in+docs Del: other reasons-- https://master.php.net/note/delete/79528 Reject -- https://master.php.net/note/reject/79528 Search -- https://master.php.net/manage/user-notes.php