无需激活直接同步登入discuz，php代码（直接可用）

 <?php
 /**
  * 抽奖
  * @param int $total
  */
 function getReward($total=1000)
 {
     $win1 = floor((0.12*$total)/100);
     $win2 = floor((3*$total)/100);
     $win3 = floor((12*$total)/100);
     $other = $total-$win1-$win2-$win3;
     $return = array();
     for ($i=0;$i<$win1;$i++)
     {
         $return[] = 1;
     }
     for ($j=0;$j<$win2;$j++)
     {
         $return[] = 2;
     }
     for ($m=0;$m<$win3;$m++)
     {
         $return[] = 3;
     }
     for ($n=0;$n<$other;$n++)
     {
         $return[] = '谢谢惠顾';
     }
     shuffle($return);
     return $return[array_rand($return)];
 }

 $data = getReward();
 echo $data;
 ?>