php根据概率来中奖算法
代码语言:php
所属分类:算法
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<?php function get_prize($proArr) { $result = ''; //概率数组的总概率精度 $proSum = array_sum($proArr); //概率数组循环 foreach ($proArr as $key => $proCur) { $randNum = mt_rand(1, $proSum); if ($randNum <= $proCur) { $result = $key; break; } else { $proSum -= $proCur; } } unset ($proArr); return $result; } $prize_arr = [ '0' => ['id' => 1, 'prize' => '平板电脑', 'v' => 1], '1' => ['id' => 2, 'prize' => '数码相机', 'v' => 5], '2' => ['id' => 3.........完整代码请登录后点击上方下载按钮下载查看
网友评论0