public function getExtra($key)
    {
        if (array_key_exists($key, $this->extras)) {
            return $this->extras[$key];
        }

        return false;
    }
public function getExtra($key)
    {
        if (array_key_exists($key, $this->extras)) {
            return $this->extras[$key];
        }

        return false;
    }
public function getExtra ( $ key ) { if ( array_key_exists ( $ key , $ this -> extras ) ) { return $ this -> extras [ $ key ] ; } return false ; }
get individual extra items

@param string $key
@return mixed
get individual extra items