From: Dave Bass <davebass@...>
Date: 2008-06-17T22:47:43+09:00
Subject: Re: Uniqid(php) for ruby:

Tannev Vitaliy wrote:
> $uniq_id = md5(uniqid(time()));

Coming from Perl, I use a combination of the system time and the process 
ID as the basis for a unique ID. I don't know if Ruby has anything 
ready-made for this, but it would be nice if it did.

MD5 and other hashing algorithms are susceptible to collisions, so you 
won't necessarily get a unique ID even if the original data is unique.

-- 
Posted via http://www.ruby-forum.com/.