[代码]PHP随机生成字符串 发表于 2015-10-10 | 分类于 PHP日记 | 评论数: | 阅读次数: 本文字数: 480 | 阅读时长 ≈ 1 分钟 123456789101112<?phpfunction code($num =16){$char =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');$i= 0;while($i < $num){$rand = mt_rand(0,61); $key .= $char\["$rand"\];$i++;}return $key;} 12//使用方法 //$a = code(3); 3为随机码个数,可改为任意数字,不填则默认16位 打赏 微信支付 支付宝