need help:php script to generate universally unique identifier (UUID)

I need to create 32 bytes unique identifier, just like libuuid from the ext2utils project (C library).
I've found that there's a package that is a wrapper of libuuid, but i dont have permission to install any php module / package.
so, is there any php script i can use?

 

You need something like this?

<?php
// better, difficult to guess
$str = strtoupper(md5(uniqid(rand(), true)));
 
$str = substr($str,0,8) . "-" .
       substr($str,8,4) . "-" .
       substr($str,12,4). "-" .
       substr($str,16,4). "-" .
       substr($str,20);
 
echo $str;
?>

Code (markup):

from my dutch weblog : http://blog.ericbruggema.nl/2008/05/23/php-guid-maken/

 

wow, it's cool.
thx.

 

If you are storing these for user or other identification, you should also verify that a newly generated one isn't currently being used. Although small, there is still a slight chance of having an id collision.