How to detect whether the HTTPS protocol is currently being used "send HTTPS this header to PHP-FPM"

function Is_https () {if (!isset ($_server[' HTTPS])) return FALSE;      if ($_server[' HTTPS '] = = = 1) {//apache return TRUE;      }elseif ($_server[' HTTPS '] = = = ' on ') {//iis return TRUE;      }elseif ($_server[' server_port ') = = 443) {//other return TRUE;  } return FALSE; }

This is also used for:

if (Strtoupper ($_server[' HTTPS ") = = = ' on ') {...}

This article is from the "Flail Blog" blog, please be sure to keep this source http://sun231013.blog.51cto.com/8558055/1621808

How to detect whether the HTTPS protocol is currently being used "send HTTPS this header to PHP-FPM"