php生成随机IP方法及在curl方法使用

        php通过curl获取第三方网站数据内容时，经常会遇到IP被封的情况，所以在请求数据时curl需要隐藏真实IP，记录操作如下：

        NO1：生成随机IP方法

            public function getRandIp(){

                $ip_long = array(

                    array('607649792', '608174079'), //36.56.0.0 - 36.63.255.255

                    array('1038614528', '1039007743'), //61.232.0.0 - 61.237.255.255

                    array('1783627776', '1784676351'), //106.80.0.0 - 106.95.255.255

                    array('2035023872', '2035154943'), //121.76.0.0 - 121.77.255.255

                    array('2078801920', '2079064063'), //123.232.0.0 - 123.235.255.255

                    array('-1950089216', '-1948778497'), //139.196.0.0 - 139.215.255.255

                    array('-1425539702', '-1425014785'), //171.8.0.0 - 171.15.255.255

                    array('-1236271104', '-1235419137'), //182.80.0.0 - 182.92.255.255

                    array('-770113536', '-768606209'), //210.25.0.0 - 210.47.255.255

                    array('-569376768', '-564133889') //222.16.0.0 - 222.95.255.255    

                );

                $rand_key = mt_rand(0, 9);

                $ip = long2ip(mt_rand($ip_long[$rand_key][0], $ip_long[$rand_key][1]));

                return $ip;

            }

        NO2：curl方法内添加Header头

            $header = array(

                    "CLIENT_IP: $ip",

                    "X-FORWARDED-FOR: $ip",

                );

            $ip调用随机方法获取，$header内其他参数自行取舍，如User-Agent模拟浏览器参数等

            参数使用：curl_setopt($curl, CURLOPT_HTTPHEADER, $header);