php获取360云盘登录后的cookie

[asp]代码库

header("Content-Type: text/html;charset=utf-8");
        $curl = curl_init();
        $url = 'http://yunpan.360.cn/';
        $data = array(
            'username'=>'用户名',
            'password'=>'密码'
        );
        $cookie_file ='./cookie.txt';
        curl_setopt($curl,CURLOPT_URL,$url);
        curl_setopt($curl,CURLOPT_POST,count($data));
        curl_setopt($curl,CURLOPT_POSTFIELDS,$data);
        curl_setopt($curl,CURLOPT_COOKIEJAR,$cookie_file);
        ob_start();
        curl_exec($curl);
        $result = ob_get_contents();
        ob_end_clean();
        curl_close($curl);