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php 使用curl模擬ip和來(lái)源進(jìn)行訪問(wèn)的實(shí)現(xiàn)方法

更新時(shí)間：2017年05月02日 11:22:34 投稿：jingxian

下面小編就為大家?guī)?lái)一篇php 使用curl模擬ip和來(lái)源進(jìn)行訪問(wèn)的實(shí)現(xiàn)方法。小編覺得挺不錯(cuò)的，現(xiàn)在就分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

對(duì)于限制了ip和來(lái)源的網(wǎng)站，使用正常的訪問(wèn)方式是無(wú)法訪問(wèn)的。本文將介紹一種方法，使用php的curl類實(shí)現(xiàn)模擬ip和來(lái)源，訪問(wèn)那些限制了ip和來(lái)源的網(wǎng)站。

1.設(shè)置頁(yè)面限制ip和來(lái)源訪問(wèn)

server.php

<?php

$client_ip = getip();
$referer = getreferer();

$allow_ip = '192.168.1.100';
$allow_referer = 'http://www.dbjr.com.cn';

if($client_ip==$allow_ip && strpos($referer, $allow_referer)===0){
  echo 'allow access';
}else{
  echo 'deny access';
}


// 獲取訪問(wèn)者ip
function getip(){
  if(!empty($_SERVER['HTTP_CLIENT_IP'])){
    $cip = $_SERVER['HTTP_CLIENT_IP'];
  }elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
    $cip = $_SERVER['HTTP_X_FORWARDED_FOR'];
  }elseif(!empty($_SERVER['REMOTE_ADDR'])){
    $cip = $_SERVER['REMOTE_ADDR'];
  }else{
    $cip = '';
  }
  return $cip;
}

// 獲取訪問(wèn)者來(lái)源
function getreferer(){
  if(isset($_SERVER['HTTP_REFERER'])){
    return $_SERVER['HTTP_REFERER'];
  }
  return '';
}

?>

2.使用curl正常訪問(wèn)

<?php
function doCurl($url, $data=array(), $header=array(), $timeout=30){

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
  curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

  $response = curl_exec($ch);

  if($error=curl_error($ch)){
    die($error);
  }

  curl_close($ch);

  return $response;

}

// 調(diào)用
$url = 'http://www.example.com/server.php';
$response = doCurl($url);

echo $response;
?>

返回 deny access

3.使用curl模擬ip和來(lái)源進(jìn)行訪問(wèn)

模擬來(lái)源

curl_setopt($ch, CURLOPT_REFERER, '來(lái)源');

模擬ip

curl_setopt($ch, CURLOPT_HTTPHEADER, array('CLIENT-IP: 模擬ip','X-FORWARDED-FOR: 模擬ip'));

完整代碼如下：

<?php
function doCurl($url, $data=array(), $header=array(), $referer='', $timeout=30){

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
  curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

  // 模擬來(lái)源
  curl_setopt($ch, CURLOPT_REFERER, $referer);

  $response = curl_exec($ch);

  if($error=curl_error($ch)){
    die($error);
  }

  curl_close($ch);

  return $response;

}

// 調(diào)用
$url = 'http://www.example.com/server.php';
$data = array();

// 設(shè)置IP
$header = array(
  'CLIENT-IP: 192.168.1.100',
  'X-FORWARDED-FOR: 192.168.1.100'
);

// 設(shè)置來(lái)源
$referer = 'http://www.dbjr.com.cn/';

$response = doCurl($url, $data, $header, $referer, 5);

echo $response;
?>

返回 allow access

以上這篇php 使用curl模擬ip和來(lái)源進(jìn)行訪問(wèn)的實(shí)現(xiàn)方法就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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