public function clear($key)
    {
        setcookie($key, '', time() - 3600);
        unset($_COOKIE[$key]);
        unset($this->store[$key]);

        return $this;
    }
public function clear($key)
    {
        setcookie($key, '', time() - 3600);
        unset($_COOKIE[$key]);
        unset($this->store[$key]);

        return $this;
    }
public function clear ( $ key ) { setcookie ( $ key , '' , time ( ) - 3600 ) ; unset ( $ _COOKIE [ $ key ] ) ; unset ( $ this -> store [ $ key ] ) ; return $ this ; }
Unset the key from the cookie

@param string $key

@return Cookie
Unset the key from the cookie