<IfModule mod_rewrite.c>

    # Enable rewrite engine
    RewriteEngine on

    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_URI} !(.*)/$
    RewriteRule ^(.*)$ /$1/ [R,L]

    # Specify a base URL-path for the rules
    RewriteBase /

    # zwei parameter
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_URI} ^/(.*)/(.*)/$ [NC]
    RewriteRule .* index.php?controller=%1&action=%2 [L]

    # ein parameter
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_URI} ^/(.*)/$ [NC]
    RewriteRule .* index.php?controller=%1 [L]
</IfModule>