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
$provinces = array(
"北京",
"天津",
"河北",
"山西",
"内蒙古",
"辽宁",
"吉林",
"黑龙江",
"上海",
"江苏",
"浙江",
"安徽",
"福建",
"江西",
"山东",
"河南",
"湖北",
"湖南",
"广东",
"广西",
"海南",
"重庆",
"四川",
"贵州",
"云南",
"西藏",
"陕西",
"甘肃",
"青海",
"宁夏",
"新疆",
"香港",
"澳门",
"台湾"
);
// 接口1
// http://ipshudi.com/{ip}.htm
function getMethod_1($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