//随机IP

 function Rand_IP(){

     $ip2id= round(rand(600000, 2550000) / 10000); //第一种方法，直接生成

     $ip3id= round(rand(600000, 2550000) / 10000);

     $ip4id= round(rand(600000, 2550000) / 10000);

     //下面是第二种方法，在以下数据中随机抽取

     $arr_1 = array("218","218","66","66","218","218","60","60","202","204","66","66","66","59","61","60","222","221","66","59","60","60","66","218","218","62","63","64","66","66","122","211");

     $randarr= mt_rand(0,count($arr_1)-1);

     $ip1id = $arr_1[$randarr];

     return $ip1id.".".$ip2id.".".$ip3id.".".$ip4id;

 }

 //抓取页面内容

 function Curl($url){

         $ch2 = curl_init();

         $user_agent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";//模拟windows用户正常访问

         curl_setopt($ch2, CURLOPT_URL, $url);

         curl_setopt($ch2, CURLOPT_TIMEOUT, 10);

         curl_setopt($ch2, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:'.Rand_IP(), 'CLIENT-IP:'.Rand_IP()));

 //追踪返回302状态码，继续抓取

         curl_setopt($ch2, CURLOPT_HEADER, true);

         curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true);

         curl_setopt($ch2, CURLOPT_FOLLOWLOCATION, true);

         curl_setopt($ch2, CURLOPT_NOBODY, false);

         curl_setopt($ch2, CURLOPT_REFERER, 'http://www.baidu.com/');//模拟来路

         curl_setopt($ch2, CURLOPT_USERAGENT, $user_agent);

         $temp = curl_exec($ch2);

         curl_close($ch2);

         return $temp;

 }

 <?php

 $postData = array(

     "user" => "root",

     "pwd"  => "123456"

 );

 $headerIp = array(

     'CLIENT-IP:88.88.88.88',

     'X-FORWARDED-FOR:88.88.88.88',

 );

 $refer = 'http://www.nidagelail.com';

 $ch = curl_init();

 curl_setopt($ch, CURLOPT_URL, 'http://localhost/phpdemo/test.php');

 //伪造来源refer

 curl_setopt($ch, CURLOPT_REFERER, $refer);

 //伪造来源ip

 curl_setopt($ch, CURLOPT_HTTPHEADER, $headerIp);

 //提交post传参

 curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

 //...各种curl属性参数设置

 $out_put = curl_exec($ch);

 curl_close($ch);

 var_dump($out_put);