note 53785 added to function.uniqid

Tommiboy's comment is irrelevant. The number of attempts needed to get a collision is related to the birthday paradox (and birthday attack). You only need on the order of 1.2*sqrt(total_count) attempts to find a collision, not (total_count/2). See http://en.wikipedia.org/wiki/Birthday_paradox and http://en.wikipedia.org/wiki/Birthday_attack ---- Manual Page -- http://www.php.net/manual/en/function.uniqid.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+53785 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+53785&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+53785&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+53785&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+53785&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+53785&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+53785&report=yes Search -- http://master.php.net/manage/user-notes.php