.htaccess - Mod rewrite to redirect to 404 if filename is followed by other characters -

on website have files index.php,home.php,about.php

and full url

http://example.com/about.php

and wired thing

 http://example.com/about.php#foobar

also goes page . want block after files name , redirect 404.

i copied similar post :

  rewriterule ([a-za-z]+).([a-za-z]+) - [l] rewriterule ([a-za-z]+).([a-za-z]+) - [r=404,l]

its not working. can me please?

edit: not hashmark related question.

i want redirect 404 url trailing path.

i think looking :

 acceptpathinfo off

Call