/**
* 判断是否SSL协议
* @return boolean
*/

functionis_ssl(){if(isset($_SERVER['HTTPS'])&&('1'==$_SERVER['HTTPS']||'on'==strtolower($_SERVER['HTTPS']))){returntrue;}elseif(isset($_SERVER['SERVER_PORT'])&&('443'==$_SERVER['SERVER_PORT'])){//https使用端口443returntrue;}returnfalse;}


1.$_SERVER['SERVER_PORT']获取https端口

2.https端口443 http端口80