对于限制了ip和来源的网站，使用正常的访问方式是无法访问的。本文将介绍一种方法，使用php的curl类实现模拟ip和来源，访问那些限制了ip和来源的网站。

1.设置页面限制ip和来源访问

server.php

<?php$client_ip = getip();$referer = getreferer();$allow_ip = "192.168.1.100";$allow_referer = "//www.yinxi.net";if($client_ip==$allow_ip && strpos($referer, $allow_referer)===0){  echo "allow access";}else{  echo "deny access";}// 获取访问者ipfunction getip(){  if(!empty($_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 $cip;}// 获取访问者来源function getreferer(){  if(isset($_SERVER["HTTP_REFERER"])){    return $_SERVER["HTTP_REFERER"];  }  return "";}?>

2.使用curl正常访问

<?phpfunction 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 $response;}// 调用$url = "http://www.example.com/server.php";$response = doCurl($url);echo $response;?>

返回 deny access

3.使用curl模拟ip和来源进行访问

模拟来源

curl_setopt($ch, CURLOPT_REFERER, "来源");

模拟ip

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

完整代码如下：

<?phpfunction 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, $timeout);  // 模拟来源  curl_setopt($ch, CURLOPT_REFERER, $referer);  $response = curl_exec($ch);  if($error=curl_error($ch)){    die($error);  }  curl_close($ch);  return $response;}// 调用$url = "http://www.example.com/server.php";$data = array();// 设置IP$header = array(  "CLIENT-IP: 192.168.1.100",  "X-FORWARDED-FOR: 192.168.1.100");// 设置来源$referer = "//www.yinxi.net/";$response = doCurl($url, $data, $header, $referer, 5);echo $response;?>

返回 allow access

以上这篇php 使用curl模拟ip和来源进行访问的实现方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持网页设计。