~~~ /** * 产生随机字符串 * * @param int $length 输出长度 * @param string $chars 可选的 ，默认为 0123456789 * @return string 字符串 */ function random($length, $chars = '0123456789') { $hash = ''; $max = strlen($chars) - 1; mt_srand(); for($i = 0; $i < $length; $i++) { $hash .= $chars[mt_rand(0, $max)]; } return $hash; } ~~~ ~~~ /** * \[get_rand_str 获取随机字符串\] * @param integer $randLength \[长度\] * @param integer $addtime \[是否加入当前时间戳\] * @param integer $includenumber \[是否包含数字\] * @return \[type\] \[description\] */ function get_rand_str($randLength=6,$addtime=1,$includenumber=0) { if ($includenumber){ $chars='abcdefghijklmnopqrstuvwxyzABCDEFGHJKLMNPQEST123456789'; }else { $chars='abcdefghijklmnopqrstuvwxyz'; } $len=strlen($chars); $randStr=''; for ($i=0;$i<$randLength;$i++){ $randStr.=$chars\[rand(0,$len-1)\]; } $tokenvalue=$randStr; if ($addtime){ $tokenvalue=$randStr.time(); } return $tokenvalue; } ~~~