Only Allow POST Requests and Deny all other REQUEST_METHOD using .htaccess

Question

I have some email PHP Scripts which I do not want the user to have a look by a GET, but I am using it to send as an email, using wufoo's webHook if anyone knows about it, so it uses POST so I just want POST Requests to be allowed otherwise, 403 or 404 how do I do that?

I tried some answers given on SO and browsed documentation of apache web server, the best answer I found was this:

 RewriteEngine On
 RewriteCond %{REQUEST_METHOD} !=GET
 RewriteRule ^.*$ /path/to

But I suppose this should be written in the directory where I have PHP Script, I just want use one .htaccess in root.

Folder Structure :

      public_html (would want to use this folders .htaccess only)
      -- email 
         -- mail.php (ONLY POST)

I know we can use REQUEST_METHOD in mail.php directly but I don't want to do that, it is kind of thing which is not related to the script actually.

can anyone provide some help.

Answer 1

This is quite similar question :
https://serverfault.com/questions/270950/only-allow-get-request-with-htaccess Just create proper .htaccess file and put it inside "email" directory.

You can also do this directly in PHP.