访客 IP 归属地查询

可以直接修改源代码，放在sidebar.php边栏合适的位置里

第三方 API

例如ip-api.com

<?php
if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
    $ip = $_SERVER['REMOTE_ADDR'];
}

$api = "http://ip-api.com/json/{$ip}?lang=zh-CN";
$response = wp_remote_get($api);
$data = json_decode(wp_remote_retrieve_body($response), true);
$area = $data['regionName'] . ' ' . $data['city'];
?>

<div class="card-body text-center leftbar-search-button">
    <div>
        欢迎来自 <?php echo $area; ?> 的朋友<br>
        当前 IP：<?php echo $ip; ?>
    </div>
</div>

本地数据库

下载官方 PHP 库

访问 https://github.com/ip2location/ip2location-php-module ，找到 src 文件夹，下载里面的 Database.php

下载数据库文件

访问 https://lite.ip2location.com 注册免费账号，下载 DB3.LITE 版本的 BIN 文件。DB3 包含国家、省份、城市三个字段，免费版每月更新一次

放置文件

在 WordPress 的主题目录下新建 location 文件夹，例如我的argon主题路径为 /wp-content/themes/argon/location/，将下载的 Database.php 和 IP2LOCATION-LITE-DB3.BIN 放入

编写代码

php添加以下内容。默认地址都是英文，我只想实现到省级的定位，所以把所有省份写进映射表即可

<div class="card-body text-center leftbar-search-button" style="padding: 12px; font-size: 14px; line-height: 1.6;">
    <?php
    require_once( dirname(__FILE__) . '/location/Database.php' );

    $region_map = [
    'Beijing' => '北京', 'Shanghai' => '上海', 'Tianjin' => '天津', 'Chongqing' => '重庆',
    'Guangdong' => '广东', 'Guangxi' => '广西', 'Hainan' => '海南', 'Fujian' => '福建',
    'Zhejiang' => '浙江', 'Jiangsu' => '江苏', 'Shandong' => '山东', 'Liaoning' => '辽宁',
    'Hebei' => '河北', 'Henan' => '河南', 'Hubei' => '湖北', 'Hunan' => '湖南',
    'Jiangxi' => '江西', 'Shaanxi' => '陕西', 'Shanxi' => '山西', 'Sichuan' => '四川',
    'Yunnan' => '云南', 'Guizhou' => '贵州', 'Anhui' => '安徽', 'Gansu' => '甘肃',
    'Qinghai' => '青海', 'Heilongjiang' => '黑龙江', 'Jilin' => '吉林', 'Neimenggu' => '内蒙古',
    'Ningxia' => '宁夏', 'Xinjiang' => '新疆', 'Xizang' => '西藏', 'Taiwan' => '台湾',
    'Hong Kong' => '香港', 'Macau' => '澳门'
    ];
    $bin_file = dirname(__FILE__) . '/location/IP2LOCATION-LITE-DB3.BIN';

    if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
    } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    } else {
        $ip = $_SERVER['REMOTE_ADDR'];
    }

    if (empty($ip) || $ip == '127.0.0.1') {
        $area = '地球';
    } elseif (!file_exists($bin_file)) {
        $area = '数据库未找到';
    } else {
        $ip2location = new \IP2Location\Database($bin_file, \IP2Location\Database::FILE_IO);
        $records = $ip2location->lookup($ip);
        $region_en = $records['regionName'] ?? '';
        $area = $region_map[$region_en] ?? ($records['countryName'] ?? '未知地区');
    }
    ?>

<div class="card-body text-center leftbar-search-button">
    <div>
        欢迎来自 <?php echo $area; ?> 的朋友<br>
        当前 IP：<?php echo $ip; ?>
    </div>
</div>