PHP--Cookei记录用户历史浏览信息

/**     * 将用品id存入Cookie中     *     * @param $id     * @return bool     */    public function setCookieRecord($id){        $data = null;        if(!isset($_COOKIE['RecordLuHuiDUDU'])){            if(!empty($id)) {                $data[0] = array(                    'id' => $id,                    'time' => date('Y-m-d H:i:s', time())                );            }else{                return false;            }        }else{            if(!empty($id)) {                $data = $_COOKIE['RecordLuHuiDUDU'];                setcookie('RecordLuHuiDUDU','',time()-3600*24*30);                $data = json_decode($data, true);                $num = count($data);                //判断是否重复                $judge = false;                foreach($data as $index => $value){                    if($data[$index]['id'] == $id){                        $data[$index]['time'] = date('Y-m-d H:i:s', time());                        $judge = true;                    }                }                if($judge){                    setcookie('RecordLuHuiDUDU',json_encode($data),time()+3600*24*30);                    return true;                }                if($num == 10){                    for($i = 0; $i < 9; $i++){ $data[$i] = $data[$i+1]; } $data[9] = array( 'id' => $id,                        'time' => date('Y-m-d H:i:s', time())                    );                }                if($num <10){ $data[$num] = array( 'id' => $id,                        'time' => date('Y-m-d H:i:s', time())                    );                }else {                    return false;                }            }        }        setcookie('RecordLuHuiDUDU',json_encode($data),time()+3600*24*30);        return true;    }