1 <?php 2 /** 3  * 抽奖 4  * @param int $total 5  */ 6 function getReward($total=1000) 7 { 8     $win1 = floor((0.12*$total)/100); 9     $win2 = floor((3*$total)/100);10     $win3 = floor((12*$total)/100);11     $other = $total-$win1-$win2-$win3;12     $return = array();13     for ($i=0;$i<$win1;$i++)14     {15         $return[] = 1;16     }17     for ($j=0;$j<$win2;$j++)18     {19         $return[] = 2;20     }21     for ($m=0;$m<$win3;$m++)22     {23         $return[] = 3;24     }25     for ($n=0;$n<$other;$n++)26     {27         $return[] = ‘谢谢惠顾‘;28     }29     shuffle($return);30     return $return[array_rand($return)];31 }32 33 $data = getReward();34 echo $data;35 ?>