如何在php中检查页面是从http或https调用的

Question

Just wondering, will it be possible we can check whether the page is call from http or https in php?

Example: If I call to a page call customer.php by the following link http://customer.php, will it be possible to check in php and tell the page is from http.. also if I call the page from the following link https://customer.php, will it be possible to check in php and tell the page is from https??

Answer 1

Try to look at:

if (!empty($_SERVER['HTTPS'])) {
    // https is enabled
}