new simple function for URI class

[eluser]xwero[/eluser]
I did a similar function that requires no additional config setting

Code:

function domain($url='')
{
    $parts = parse_url(config_item('base_url'));
    $return = $parts['scheme'].'://'.$parts['host'];
    if( ! empty($url)){ $return .= '/'.$url; }
    return $return;
}