Using HTAccess to Redirect All Users (and POST data) to the Same URL

With the Apache .htaccess file, you can control a good number of things on your server.

If you turn on the RewriteEngine, you can have one URL example.com/123, always return the results of another URL, like example.com/index.php?id=123.

To do this, you need to have a .htaccess file in the base directory of your apache htdocs folder. It should start with this...

RewriteEngine On
RewriteBase /

And, it can redirect everyone to index.php with this...

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php [QSA,NC,L]

You can change index.php to anything you like, of course. Then you can get the information about the original URL by using the $_POST parameters, which you can see with...

print_r($_POST);