php代码
/**
* 生成序列号
*
把12位时间数值压缩成7-8位字母+数字组合字符串,重点是加上用户编号后将永不重复哈
*
用法：$serial_no = sofn_generate_serial('KH' . $this->user_login_data['id']);
*
示例：160121054346(12位,date('ymdhis'))压缩后QBVF4346(8位,sofn_generate_serial())
* @param string $serial_no 序号前缀，如:'KH' . $this->user_login_data['id']
* @return string 如：QBVF295
* @since VER:1.0; DATE:2016-1-21; AUTHOR:SoChishun; EMAIL:14507247@qq.com; DESC:Added.
*/
function sofn_generate_serial($serial_no='') {
$time = date('y-m-d-H-i-s');
$atime = explode('-', $time);
foreach ($atime as $stime) {
$itime = $stime * 1;
if ($itime = 48 && $itime <div></div><p>
</p>
