PHP实现活动人选抽奖功能

本文介绍情景为活动人选抽奖，通过简单随机抽取指定人数，依次列举被抽中的人名。示例代码如下：

rush:xhtml;"> <Meta charset="UTF-8"> PHP $lotterPeopleArr = array(); $num = 8;

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

while(in_array($l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeople,$l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeopleArr)){
  $l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeople = GetRandStr(1);
}

$l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeopleArr[$i] = $l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeople;
echo "抽中人：". $l<a href="https://www.jb51.cc/tag/ott/" target="_blank" class="keywords">ott</a>erPeopleArr[$i].'<br/>';

}

// echo '抽中人：'. $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='4',$type='3')
  {

switch($type)
{
  case '1';
  $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 '2';
  $chars = array(
      "0","1","2","3","4","5","6","7","8","9"
  );
  break;
  case '3';
  $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","Z","0","9"
  );
  break;
}
$charsLen = count($chars) - 1;
shuffle($chars);
$output = "";
for ($i=0; $i<$len; $i++)
{
$output .= $chars[mt_rand(0,$charsLen)];
}
return $output;

}
?>

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