public function history_draw($page = 0)

{

    set_time_limit(0);

    $page++;

    $up2now = date('Y-m-d');

    $fp = fsockopen('www.cwl.gov.cn', 80, $errno, $errstr, 60) or die('fsockopen失败：' . $errno . $errstr);

    $out = <<<EOL

GET http://www.cwl.gov.cn/cwl_admin/kjxx/findDrawNotice?name=ssq&issueCount=&issueStart=&issueEnd=&dayStart=2003-01-01&dayEnd={$up2now}&pageNo={$page} HTTP/1.1

Host: www.cwl.gov.cn

Connection: keep-alive

Accept: application/json, text/javascript, */*; q=0.01

X-Requested-With: XMLHttpRequest

User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36

Referer: http://www.cwl.gov.cn/kjxx/ssq/kjgg/

Accept-Encoding: gzip, deflate, sdch

Accept-Language: zh-CN,zh;q=0.8,en;q=0.6

Cookie: UniqueID=3dauCXLoQK01tDVH1575514942401; Sites=_21; 21_vq=6; _ga=GA1.3.1090297853.1575514946; _gid=GA1.3.447342718.1575514946; _Jo0OQK=4A1B07EC59D1342CFCAA246B2A0002154A53049E0E5B207A6D0A66050057CE12B9F70A1581661090506815D462089F11972544962C45EF0BF16418257266B0B3233F1B3C19C5B2FC5F8E6E66EDA7420CD4BE6E66EDA7420CD4BD84331FADDCD4DAC3328EEBACF9E4A3CGJ1Z1fQ==

\r\n\r\n

EOL;

    fwrite($fp, $out);

    $data = '';

    while (!feof($fp)) {

        $data .= fgets($fp, 128);

    }

    fclose($fp);

    $result     = substr($data, strpos($data, '{'));

    $result     = json_decode($result, true);

    $records    = $result['countNum'];

    $total_page = $result['pageCount'];

    if ($page > $total_page) {

        exit('数据写入完成');

    }

    foreach ($result['result'] as $value) {

        $red = explode(',', $value['red']);

        $new[] = array(

            'issue'     => $value['code'],

            'draw_date' => substr($value['date'], 0, 10),

            'blue'         => $value['blue'],

            'red_1'     => $red[0],

            'red_2'     => $red[1],

            'red_3'     => $red[2],

            'red_4'     => $red[3],

            'red_5'     => $red[4],

            'red_6'     => $red[5],

        );

    }

    $this->db->insert_batch('dual_ball', $new);

    echo '2003-01-01 至 '. $up2now . ' 总开奖期数为：' . $records .'，已插入' . count($new);

    echo '<br>';

    if ($total_page > 1) {

        sleep(1);

        $this->history_draw($page);

    }

}