public function get($key)
    {
        if (isset($this->conf[$key])) {
            return (string) $this->conf[$key];
        }

        return null;
    }
public function get($key)
    {
        if (isset($this->conf[$key])) {
            return (string) $this->conf[$key];
        }

        return null;
    }
public function get ( $ key ) { if ( isset ( $ this -> conf [ $ key ] ) ) { return ( string ) $ this -> conf [ $ key ] ; } return null ; }
Get a config variable.

@param  string  $key  Config key
@return  mixed|null  Variable, or null if not set
Get a config variable .