php 判断服务器是否是HTTPS连接

需要判断代码运行环境是否是HTTPS服务器？下面的代码可以帮助你实现，非常简单！

if ($_SERVER['HTTPS'] != "on") {echo "This is not HTTPS";}else{echo "This is HTTPS";}if ($_SERVER['HTTPS'] != "on") {echo "This is not HTTPS";}else{echo "This is HTTPS";}