I am using this GitHub page: https://github.com/Athlon1600/php-proxy-app and as it's supposed to, when I go to development.stech.software it loads up index.php. 
When I choose a link, it makes it a query string like this development.stech.software/index.php?q=y6ml06abkWPdp6pnn6PVl6TLlMSkpmdvzdzUj6WZbqbWoQ (where the random characters is the query).
How do I adjust the index.php file, so that when I go to a URL, it loads it on /index.php/query/y6ml06abkWPdp6pnn6PVl6TLlMSkpmdvzdzUj6WZbqbWoQ or something similar.
I tried this, but it wouldn't work (it reported 500), I found it from URL rewriting with PHP
$path = ltrim($_SERVER['REQUEST_URI'], '/');    // Trim leading slash(es)
$elements = explode('/', $path);                // Split path on slashes
if(empty($elements[0])) {                       // No path elements means home
    ShowHomepage();
} else switch(array_shift($elements))             // Pop off first item and switch
{
    case 'index':
        ShowPicture($elements); // passes rest of parameters to internal function
        break;
    case 'more':
        ...
    default:
        header('HTTP/1.1 404 Not Found');
        Show404Error();
} 
I also added this to .htaccess FallbackResource htdocs/index.php
 
    