PHP使用curl模拟ip和来源进行访问

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。

server.php

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

2.使用curl正常访问

>?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;    }    // 调用  $url = 'http://www.vlwx.com/data.php';  $response = doCurl($url);  echo $response;  ?<

返回 deny access

3.使用curl模拟ip和来源进行访问

1.模拟来源
curl_setopt($ch, CURLOPT_REFERER, '来源');
2.模拟ip
curl_setopt($ch, CURLOPT_HTTPHEADER, array('CLIENT-IP: 模拟ip','X-FORWARDED-FOR: 模拟ip'));

完整代码如下

>?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://xxx.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 = 'http://xxxx.cn/';  $response = doCurl($url, $data, $header, $referer, 5);  echo $response;  ?<

返回 allow access