<ifModule mod_rewrite.c> 
# Turn on the engine: 
RewriteEngine on
# Don't perform redirects for files and directories that exis
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# For everything else, redirect to index.php:
RewriteRule ^(.*)$ index.php/$1
</ifModule>