php限制ip访问 源码

<?php
// 允许访问的IP地址列表
$allowed_ips = ['192.168.1.1', '10.0.0.1'];

// 获取当前请求的IP地址
$current_ip = $_SERVER['REMOTE_ADDR'];

// 检查当前IP是否在允许列表中
if (!in_array($current_ip, $allowed_ips)) {
    // 如果不在允许列表中，拒绝访问
    header('HTTP/1.0 403 Forbidden');
    echo 'Access denied.';
    exit();
}

// 如果IP地址被允许，继续执行后续代码
echo 'Welcome! You have access to this resource.';
?>

<?php
$allowed_ips = ['192.168.1.1', '10.0.0.1'];

// 获取真实的客户端IP地址
if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $current_ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $current_ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
    $current_ip = $_SERVER['REMOTE_ADDR'];
}

if (!in_array($current_ip, $allowed_ips)) {
    header('HTTP/1.0 403 Forbidden');
    echo 'Access denied.';
    exit();
}

echo 'Welcome! You have access to this resource.';
?>