Options -Indexes
<Files ~ "^.*\.([Hh][Tt][Aa])">
    Order allow,deny
    Deny from all
    Satisfy all
</Files>

DirectoryIndex index.php

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php [QSA,L]
</IfModule> 