微信公众号非善意访问的限制 php curl 伪造UA

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<?php

if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') === false) {
    echo 'www123';
}
die();

<?php
$curl = curl_init();        //初始化实例
curl_setopt($curl, CURLOPT_URL, 'http://www.mysite.cn');        //设置URL地址
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);        //5秒连接超时
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);        //设为1返回Http响应结果
//伪造客户端，最好设一下，有些网站会根据客户端来阻隔请求的
curl_setopt($curl, CURLOPT_USERAGENT, 'User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0');
$response = curl_exec($curl);        //curl执行http请求，响应存到$response变量中

var_dump($response);
$state = curl_getinfo($curl, CURLINFO_HTTP_CODE);        //可以用这句来获取响应的状态码
var_dump($state);
curl_close($curl);        //释放curl资源


$curl = curl_init();        //初始化实例
curl_setopt($curl, CURLOPT_URL, 'http://www.mysite.cn');        //设置URL地址
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);        //5秒连接超时
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);        //设为1返回Http响应结果
//伪造客户端，最好设一下，有些网站会根据客户端来阻隔请求的
curl_setopt($curl, CURLOPT_USERAGENT, 'User-Agent:wwwMicroMessenger');
$response = curl_exec($curl);        //curl执行http请求，响应存到$response变量中

var_dump($response);
$state = curl_getinfo($curl, CURLINFO_HTTP_CODE);        //可以用这句来获取响应的状态码
var_dump($state);
curl_close($curl);        //释放curl资源

http://www.tuicool.com/articles/aIreQb