PHP实现活动人选抽奖功能
2018-09-07 22:20
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：
<!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].<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, 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>
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