title: allow access only to homepage.html but deny direct access to other php files in the drectory
body: <p>i have 1.php, 2.php, 3.php under xampp/htdocs/example/</p>
  
  <p>i have given the links to all three php files through the <code>&lt;a href&gt;</code> tag.</p>
  
  <p>Is it possible to restrict direct access to all these php files. but they should work when they are accessed through homepage.html.
  pls help</p>