Redirect from secure https to http for only one page

Question

I have a page, page.php that I need to be redirected to http if it is accessed through https because otherwise my google ads won't show up.

To be precise, I would like the following to happen:

https://site.com/page.php?blah=foo?bar=blah --> http://site.com/page.php?blah=foo?bar=blah

I have so far tried :

RewriteCond %{HTTP_HOST} on

RewriteRule ^page\\.php$ http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

But this doesn't work. Any suggestions?

Answer 1

This might also be a quick copy paste

if ($_SERVER['HTTPS'] == "on") {
    $url = "http://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
    header("Location: $url");
    exit;
} 

Answer 2

if($_SERVER['SERVER_PORT'] == '443')
{
   header('location:http://url.com');
}

if the secure port is set to other than 443 this will not work so you can also use

$_SERVER['HTTPS'] == 'on'