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标题：Windows服务器php网址，局域网限制访问
<div style=""><font face="Arial"><span style="font-size: 14px;">Windows服务器局域网限制访问</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">在 Windows里，要让某个 PHP 局域网段</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">（或者直接在「作用域」里把「本地 IP」限制成本机内网地址）。</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">结果：</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">局域网电脑输入 http://192.168.x.x 正常打开站点；</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">外网通过公网 IP 或域名访问时，直接拒绝，浏览器报「连接超时」。</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">步骤：PHP 层</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">在网站入口 index.php 顶部放：（替换php中的</span></font><span style="font-family: Arial; font-size: 14px;"><?php</span><span style="font-size: 14px; font-family: Arial;">）</span></div><div style=""><font face="Arial"><span style="font-size: 14px;"><br></span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">===========================代码=============================</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;"><?php</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">$ip = $_SERVER['REMOTE_ADDR'];</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) {</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;"> // 属于内网/本地地址，正常访问</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">} else {</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;"> http_response_code(403);</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;"> exit('External IP denied.');</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">}</span></font></div><div style=""><font face="Arial"><span style="font-size: 14px;">========================================================</span></font></div>
