#50471 [Opn->Csd]: uniqid example is bad

ID: 50471 Updated by: kalle@php.net Reported By: emery dot denuccio at gmail dot com -Status: Open +Status: Closed Bug Type: Documentation problem Operating System: Mac PHP Version: 5.3.1 -Assigned To: +Assigned To: kalle New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. I rewrote the examples for uniqid() without the use of a hashing, simply showing the different types of output uniqid() produces. Previous Comments: ------------------------------------------------------------------------ [2009-12-25 00:24:48] svn@php.net Automatic comment from SVN on behalf of kalle Revision: http://svn.php.net/viewvc/?view=revision&revision=292616 Log: Fixed bug #50471 (uniqid example is bad) ------------------------------------------------------------------------ [2009-12-14 17:28:00] emery dot denuccio at gmail dot com Description: ------------ As many people have pointed out in the comments, MD5 hashing a UUID simply reduces the randomness due to collisions. The example is pointless / less secure. Reproduce code: --------------- --- From manual page: function.uniqid#Examples --- Expected result: ---------------- ... Actual result: -------------- ... ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=50471&edit=1