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$referer = 'http://www.csdn.net/';$response = docurl($url, $data, $header, $referer, 5);echo $response;?>
返回 allow access
以上就是php curl如何设置ip的详细内容。