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網(wǎng)絡(luò)地址來(lái)源：

獲取公網(wǎng)IP地址                  
https://ipip.yy.com/get_ip_info.php
http://pv.sohu.com/cityjson?ie=utf-8
http://www.ip168.com/json.do?view=myipaddress
http://www.ipip.NET/ip.php
http://ip.chemdrug.com/
http://ip.siteloop.net/
http://whois.pconline.com.cn/ipJson.jsp?callback={IP:255.255.255.255}
http://www.whatismyip.com.tw/

Python/ target=_blank class=infotextkey>Python

import requests
from bs4 import BeautifulSoup
def getIP():
    headers = {
        "Accept": "text/html,Application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
        "User-Agent": "Mozilla/5.0 (windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.16 Safari/537.36",
    }

    url = 'http://www.whatismyip.com.tw/'
    response = requests.get(url=url,
                            headers=headers).content.decode()
    soup = BeautifulSoup(response, 'html.parser')
    ipaddress = soup.find_all('b')[0].find("span").text
    ip_list = ["127.0.0.1","1.204.29.177"]
    if ipaddress in ip_list:
        print("合法登錄")
    else:
        print("非法登錄")


getIP()

PHP

     		$url = "http://pv.sohu.com/cityjson?ie=utf-8";
        $content = file_get_contents($url);
        $data = explode("=",$content);
        $str = substr($data[1],0,strlen($data[1])-1);
        $ip_str = explode(",",$str)[0];
        $ip_str = explode(":",$ip_str);
        $visitor_ip = explode('"',$ip_str[1])[1]; # 訪問者ip
        
        # 獲取ip庫(kù)
        $filename = "ip_list.txt";
        $arr = array();
        if (0 < filesize($filename)){
            $handle = fopen($filename, "r");//讀取二進(jìn)制文件時(shí)，需要將第二個(gè)參數(shù)設(shè)置成'rb'
        
             //通過filesize獲得文件大小，將整個(gè)文件一下子讀到一個(gè)字符串中
            $contents = fread($handle, filesize ($filename));
            fclose($handle);
            $arr = explode("rn",trim($contents,"rn"));
        }
        
        
        if (in_array($visitor_ip,$arr) || 0 == count($arr)){
             echo "合法";
        }else{
             echo "非法";
        }