php curl如何设置ip

php curl设置ip的方法：首先通过getip方法获取访问者ip；然后使用“getreferer”方法获取访问者来源；最后实现设置页面限制ip和来源访问即可。

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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。

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'; $allow_referer = 'http://www.csdn.net'; if($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.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：

<?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://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 = 'http://www.csdn.net/'; $response = doCurl($url, $data, $header, $referer, 5); echo $response; ?>

返回 allow access