Jasper Bryant-Greene wrote:
Chris wrote:
David Robley wrote:
Chris wrote:
Pretty soon I'm going to be needing to generate a unique identifier
in a
script. I'm looking into how to go about doing it now.
Have you looked at uniqid() ? http://php.net/uniqid
If two requests generate and ID at the same microsecond then the ID
will duplicate, and that will not work for me.
$unique_id = sha1( uniqid( mt_rand(), true ) );
That unique ID will be based on the current time in microseconds
prefixed by a random number generated by the Mersenne Twister. That is
*extremely* unlikely to duplicate, even at the same microsecond.
Ok, thanks, That looks like it will work for me.
Any particular reason why you used sha1() in there?
Thanks alot,
Chris
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