摘要

获取客户端ip地址，然后使用这个ip地址获取所在的国家、省份、城市，可以在网站中实现IP属地，发布地等功能。

本文的获取IP地址信息均采自网络上免费的IP查询网站，通过其API或者网页HTML解析出的ip地址信息。

代码

<?php// 编码header('Content-type:application/json');$ip = $_GET['ip'];// 过滤空数据if(!$ip) {$ipinfo = array('code' => 201,'msg' => '未传入ip地址');echo json_encode($ipinfo,JSON_UNESCAPED_UNICODE);exit;}// 验证ipv4地址合法性if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {$ipinfo = array('code' => 201,'msg' => '这不是一个正确的ip地址');echo json_encode($ipinfo,JSON_UNESCAPED_UNICODE);exit;}// 请求接口$methods = ['getMethod_1','getMethod_2','getMethod_3','getMethod_4','getMethod_5'];foreach ($methods as $method) {$response = json_decode($method($ip));if ($response->code === 200) {// 如果请求成功，输出请求结果并停止循环echo $method($ip);break;}}if (!isset($response) || $response->code !== 200) {$ipinfo = array('code' => 201,'msg' => '请求失败~');echo json_encode($ipinfo,JSON_UNESCAPED_UNICODE);exit;}// HTTP请求封装function cUrlGetIP($url) {// cUrl$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);$header[] = 'user-agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36';curl_setopt($ch, CURLOPT_HTTPHEADER, $header);return curl_exec($ch);curl_close($ch);}// 中国34个省级行政区域$provinces = array("北京","天津","河北","山西","内蒙古","辽宁","吉林","黑龙江","上海","江苏","浙江","安徽","福建","江西","山东","河南","湖北","湖南","广东","广西","海南","重庆","四川","贵州","云南","西藏","陕西","甘肃","青海","宁夏","新疆","香港","澳门","台湾");// 接口1// http://ipshudi.com/{ip}.htmfunction getMethod_1($ip) {$response = file_get_contents('http://ipshudi.com/'.$ip.'.htm');$str1 = substr($response, strripos($response, "归属地"));$str2 = substr($str1, 0, strrpos($str1, "运营商"));$str3 = substr($str2, strripos($str2, "<span>") + 6);$str4 = substr($str3, 0, strripos($str3, "</span>") + 6);// 提取国家$country = substr($str4, 0, strpos($str4, ' '));// 提取省份$str5 = substr($str4, 0, strrpos($str4, " <a href"));$province = substr($str5, strpos($str5, ' ') + 1);// 提取城市preg_match('/>([^<]+)</', $str4, $matches);$city = $matches[1];// 提取县区$str6 = substr($str4, strripos($str4, "</a>"));$district = preg_replace('/[^\x{4e00}-\x{9fa5}]+/u', '', $str6);// 判断是否获取成功if($country || $province || $city || $district) {// 拼接数组$ipinfo = array('code' => 200,'msg' => '获取成功','ipinfo' => array('country' => $country,'province' => $province,'city' => $city,'district' => $district,'ip' => $ip));}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}return json_encode($ipinfo,JSON_UNESCAPED_UNICODE);}// 接口2// https://searchplugin.csdn.net/api/v1/ip/get?ip={ip}function getMethod_2($ip) {$response = cUrlGetIP('https://searchplugin.csdn.net/api/v1/ip/get?ip='.$ip);$code = json_decode($response,true)['code'];if($code == 200) {$str1 = json_decode($response,true)['data']['address'];// 国家$country = explode(' ', $str1)[0];// 省份$province = explode(' ', $str1)[1];// 城市$city = explode(' ', $str1)[2];// 县区$district = '';// 判断是否获取成功if($country || $province || $city || $district) {// 拼接数组$ipinfo = array('code' => 200,'msg' => '获取成功','ipinfo' => array('country' => $country,'province' => $province,'city' => $city,'district' => $district,'ip' => json_decode($response,true)['data']['ip']));}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}return json_encode($ipinfo,JSON_UNESCAPED_UNICODE);}// 接口3// https://ipchaxun.com/{ip}/function getMethod_3($ip) {$response = cUrlGetIP('https://ipchaxun.com/'.$ip.'/');$str1 = substr($response, strripos($response, "归属地") + 15);$str2 = substr($str1, 0, strrpos($str1, "运营商"));// 提取省份global $provinces;foreach ($provinces as $province_) {if (strpos($str2, $province_) !== false) {$province = $province_;break;}}// 提取国家$str3 = substr($str2, 0, strrpos($str2, $province));$country = preg_replace('/[^\x{4e00}-\x{9fa5}]+/u', '', $str3);// 提取城市$str4 = substr($str2, strripos($str2, "nofollow") + 10);$city = substr($str4, 0, strrpos($str4, "</a>"));// 提取县区$str6 = substr($str2, strripos($str2, "</a>") + 4);$district = substr($str6, 0, strrpos($str6, "</span>"));// 判断是否获取成功if($country || $province || $city || $district) {// 拼接数组$ipinfo = array('code' => 200,'msg' => '获取成功','ipinfo' => array('country' => $country,'province' => $province,'city' => $city,'district' => $district,'ip' => $ip));}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}return json_encode($ipinfo,JSON_UNESCAPED_UNICODE);}// 接口4// https://api.vvhan.com/api/getIpInfo?ip={ip}function getMethod_4($ip) {$response = cUrlGetIP('https://api.vvhan.com/api/getIpInfo?ip='.$ip);$success = json_decode($response,true)['success'];if($success == true) {$str1 = json_decode($response,true)['info'];// 国家$country = $str1['country'];// 省份$province = $str1['prov'];// 城市$city = $str1['city'];// 县区$district = '';// 判断是否获取成功if($country || $province || $city || $district) {// 拼接数组$ipinfo = array('code' => 200,'msg' => '获取成功','ipinfo' => array('country' => $country,'province' => $province,'city' => $city,'district' => $district,'ip' => $ip));}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}return json_encode($ipinfo,JSON_UNESCAPED_UNICODE);}// 接口5// https://c.runoob.com/wp-content/themes/toolrunoob2/option/ajax.php?type=checkIP&REMOTE_ADDR={ip}function getMethod_5($ip) {$response = cUrlGetIP('https://c.runoob.com/wp-content/themes/toolrunoob2/option/ajax.php?type=checkIP&REMOTE_ADDR='.$ip);$flag = json_decode($response,true)['flag'];if($flag == true) {$str1 = json_decode($response,true)['data'];// 国家$country = $str1['country'];// 省份$province = $str1['regionName'];// 城市$city = $str1['city'];// 县区$district = '';// 判断是否获取成功if($country || $province || $city || $district) {// 拼接数组$ipinfo = array('code' => 200,'msg' => '获取成功','ipinfo' => array('country' => $country,'province' => $province,'city' => $city,'district' => $district,'ip' => $ip));}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}}else {$ipinfo = array('code' => 201,'msg' => '获取失败');}return json_encode($ipinfo,JSON_UNESCAPED_UNICODE);}?>

使用

https://域名/getipInfo.php?ip=需要查询的IP地址

一共有5个接口，接口失效会使用下一个接口，直到接口成功，最终输出数据格式如下：

{"code":200,"msg":"获取成功","ipinfo":{"country":"中国","province":"广东省","city":"广州市","district":"番禺区","ip":"xx.xx.xxx.xx"}}

作者

TANKING