PHP implements activity candidate lottery function code

怪我咯
Release: 2023-03-13 15:36:01
Original
1801 people have browsed it

Random lottery software is a computer lottery software that can be used on any lottery occasion. The software draws draws with one click and uses a random algorithm to ensure fairness and justice. You can use the random lottery software for unit annual meetings, galas, Among various on-site lottery activities such as TV shows, weddings, shopping malls, and Internet cafes. This article mainly introduces the PHP implementation of the event candidate lottery function. Randomly select a specified number of people and list the names of the selected people in order. It has a certain reference value. Interested friends can refer to the

sample code as follows :

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>活动人选</title>
  </head>
  <body>
  <?php
  $lotterPeopleArr = array();
  $num = 8;

  for($i=0;$i<$num;$i++){
    $lotterPeople = GetRandStr(1);

    while(in_array($lotterPeople, $lotterPeopleArr)){
      $lotterPeople = GetRandStr(1);
    }

    $lotterPeopleArr[$i] = $lotterPeople;
    echo "抽中人:". $lotterPeopleArr[$i].&#39;<br/>&#39;;
  }

  // echo &#39;抽中人:&#39;. $lotterPeople;



  /**
   * 生成随机数
   * $type int 默认(字母&&数字) 1 纯字母 2.纯数字 3.英文单词
   */
   function GetRandStr($len=&#39;4&#39;,$type=&#39;3&#39;)
  {


    switch($type)
    {
      case &#39;1&#39;;
      $chars = array(
          "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
          "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
          "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
          "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
          "S", "T", "U", "V", "W", "X", "Y", "Z"
      );
      break;
      case &#39;2&#39;;
      $chars = array(
          "0", "1", "2",
          "3", "4", "5", "6", "7", "8", "9"
      );
      break;
      case &#39;3&#39;;
      $chars = array(
          "小华","小冠","小王","小吴","小朱","小何","小陈","小熊","小斌","小李","小春","小超","小张","小郭","小柯","小梁","小理","小龚","小杰","小余","小洪","小郑","小志","小潘",
      );
      break;
      default;
      $chars = array(
          "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
          "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
          "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
          "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
          "S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2",
          "3", "4", "5", "6", "7", "8", "9"
      );
      break;
    }
    $charsLen = count($chars) - 1;
    shuffle($chars);
    $output = "";
    for ($i=0; $i<$len; $i++)
    {
    $output .= $chars[mt_rand(0, $charsLen)];
    }
    return $output;
  }
  ?>
  </body>
</html>
Copy after login

The above is the detailed content of PHP implements activity candidate lottery function code. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!