Generally I use process id + timestamp to create the unique key.like,
$uniq_key = $$ . time();

----- original Nachricht --------

Betreff: cgi app runtime unique identifier.
Gesendet: Sa 01 Sep 2007 17:22:00 CEST
Von: "Tim Bowden"<[EMAIL PROTECTED]>

> I'm writing a small cgi app that takes an uploaded file, stores it on
> disk and does some operations to it.  To avoid multiple instances
> clobbering each other, I think I need to find a unique key to use in
> creating a dir specifically for use by that instance.  Can anyone point
> me in the right direction here?  It's not something I've done before and
> I don't want to go off half cocked with something that will lead to
> intermittent failure.  There's no user login etc so no options there I
> can use.
> 
> Thanks,
> Tim Bowden
> 
> 
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> 

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