您只需让Apache的 认为的的SSL是通过设置环境变量（在PHP逻辑 $ _ SERVER ['HTTPS'] ）

You could just let Apache think SSL is on by setting the environment variable (in PHP logic $_SERVER['HTTPS'])

SetEnvIf X-Forwarded-Proto https HTTPS=On

这应该让你的遗产code，而不需要改​​变工作。

This should allow your legacy code to work without the need to change.