php - methods for determining if traffic is through https or http

Question

I need a simple function to decide if the it's using https or http. I was thinking - is there a way for php to access the port #? So if it's 443 I know it's secure, and if it's 80 I know it's normal.

What other ways are there of determining this?

Duplicate of How to find out if you're using HTTPS without $_SERVER['HTTPS']. — Gras Double
– Gras Double, Commented May 24 at 21:13

Mike Lewis · Accepted Answer · 2011-03-17 01:32:04Z

6

<?php 
if($_SERVER['HTTPS']){ 
  //secure 
}else{ 
  // not secure
} 
?>

However some servers don't set HTTPS, so in the worst case:

<?php
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) {
  // secure
}
?>

answered Mar 17, 2011 at 1:32

Mike Lewis

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