PHP知识分享之session && cookie

'xx',        'age'=>20,        'sex'=>'is_nan',    );    session_destroy();    //销毁session     if(isset($_SESSION)){        print_r($_SESSION);    }else{        echo "session以销毁！";    }///////////////////////////////////////////////////////////////////    // php设置cookie ，php中cookie如何以数组的方式进行存储    $arr  = array(        'name'=>'xxxx22',        'sex'=>'boys',        'age'=>21,    );    //数组转换字符串存储    $cookie  = serialize($arr);    //设置cookie    setcookie('cookies',$cookie,time()+60*60);      print_r($cookies);    setcookie('cookies','',time()-3600)    //销毁cookie    if(isset($cookies)){        print_r($cookies);    }else{        echo "cookie已销毁！";    }