I have managed to create a simple routing system however I’m a bit stuck on how to make it more dynamic. In this case I have got a blog post set up in my routing which is hard coded. If i click a dynamic link in my website that requires the /views/blog/page.php how can I get the system to work out what the page_slug is and append the page_slug so that it works without hard coding the links into it?

switch ($request) {

    case '':
    case "https://stackoverflow.com/":
        require __DIR__ . '/views/index.php';
        break;
    
    case '/blog/blog-post-one':
         $_GET['page_slug'] = 'blog-post-one';
        require __DIR__ . '/views/blog/page.php';
        break;
}

I’ve added my .htaccess file below just in case

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [QSA,L]