[SOLVED] delete index.php

I forget how to set up the .htaccess so that index.php does not appears in the url:

This is what I try:

.htaccess

Code:

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php/$0 [PT,L]

config.php

Code:

$config['index_page'] = '';

Yet, I have not been successful.  I still have to write the index.php in order to make it works.

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