PHP uses curl to hide and cover the source IP

This time I will bring you PHP's use of curl to hide and cover the source IP. PHP uses curl to hide and cover the source IP. What are the things to note? The following is a practical case, let's take a look.

php curl fake source ip and source refer example code 1:

//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 curl fake source ip and source refer example code 2:

<?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.baidu.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);

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