.htaccess

<IfModule mod_rewrite.c>

    # Make sure directory listing is disabled
    Options +FollowSymLinks -Indexes
    # disable the Apache MultiViews directive if it is enabled on the server. It plays havoc with URL rewriting
    Options -MultiViews
    RewriteEngine on

    RewriteBase /

    # Send request via index.php (again, not if its a real file or folder)
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d

    <IfModule mod_php5.c>
        RewriteRule ^(.*)$ index.php/$1 [L]
    </IfModule>

    <IfModule !mod_php5.c>
        RewriteRule ^(.*)$ index.php?/$1 [NC,L,QSA]
    </IfModule>

</IfModule>
<IfModule mod_env.c>
    SetEnv CI_ENV development
    SetEnv CACHE_EXPIRATION 0
</IfModule>