public function ipArea(){
        $arr = [
            ['223.8.0.0','223.15.255.255'],
            ['118.72.0.0','118.79.255.255'],
            ['115.24.0.0','115.27.255.255'],
            ['123.174.0.0','123.175.255.255'],
            ['218.26.0.0','218.26.255.255'],
            ['222.199.0.0','222.199.255.255'],
            ['202.97.128.0','202.97.191.255'],
            ['202.99.200.0','202.99.207.255'],
            ['183.184.0.0','183.191.255.255'],
            ['218.200.0.0','218.203.255.255'],
            ['113.24.0.0','113.27.255.255'],
            ['221.204.0.0','221.205.255.255'],
            ['59.48.0.0','59.48.255.255'],
            ['124.163.0.0','124.163.255.255'],
            ['61.134.192.0','61.134.255.255'],
            ['103.22.72.0','103.22.75.255'],
            ['171.120.0.0','171.127.255.255'],
            ['171.116.0.0','171.119.255.255'],
            ['1.68.0.0','1.71.255.255'],
            ['118.80.0.0','118.81.255.255'],
            ['211.82.0.0','211.82.255.255'],
            ['59.49.0.0','59.49.127.255'],
            ['202.99.208.0','202.99.223.255'],
            ['110.176.0.0','110.183.255.255'],
            ['124.164.0.0','124.167.255.255'],
            ['60.220.0.0','60.223.255.255'],
            ['121.30.0.0','121.30.255.255'],
            ['219.149.128.0','219.149.191.255'],
            ['202.99.192.0','202.99.199.255'],
        ];
        return $arr;
    }

    public function getRandIp(){

        $ip_long = ipArea();

        $rand_key = mt_rand(0, count($ip_long)-1);
        $huoduan_ip= long2ip(mt_rand(ip2long($ip_long[$rand_key][0]), ip2long($ip_long[$rand_key][1])));
        return $huoduan_ip;
    }