1.3.PHPUUID

<?php

/* Copyright 2006 Maciej Strzelecki

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */

function uuid()

{

   // version 4 UUID

   return sprintf(

       `%08x-%04x-%04x-%02x%02x-%012x`,

       mt_rand(),

       mt_rand(0, 65535),

       bindec(substr_replace(

           sprintf(`%016b`, mt_rand(0, 65535)), `0100`, 11, 4)

       ),

       bindec(substr_replace(sprintf(`%08b`, mt_rand(0, 255)), `01`, 5, 2)),

       mt_rand(0, 255),

       mt_rand()

   );

}

?>

原文出處：Netkiller 系列手札

本文作者：陳景峰

轉載請與作者聯絡，同時請務必標明文章原始出處和作者資訊及本宣告。