是否可以在不使用GeoIP的情况下检查IP地址是否来自特定国家/地区？

Question

所以我想检查用户是否在特定的县

    $ip = user ip;
$countryIP = some number;

    if($ip == $countryIP){echo 'okey';} else {echo 'not okey';}

我不想使用带有地理位置的数据库，因为我只需要一个国家。我也不想使用第三方服务。

例如abc.go.com/watch仅适用于美国，我想做类似的事情

谢谢：）

Answer 1

无法在不对其执行GeoIP的情况下查明是否已将ip地址分配给某个国家/地区。

Answer 2

好的，如果您对根据您指定的区域检查保加利亚感到满意，那么您可以合理地完成它 - 您需要做的就是将IP地址转换为数字符号。

77.85.0.0/16表示从77.85.0.0到77.85.255.255的任何代码 - 现在将这些代码转换为数值：

77*256^3+85*256^2+0*256+0 = 1297416192
77*256^3+85*256^2+255*256+255 = 1297481727

现在以相同的方式转换要检查的IP - 并验证它们是否在这两个数字之间。当然，它并不像你说的那么简单。保加利亚有400多个不同的街区。如果你关心这一切，这里是他们的数字表示的完整列表（截至上次更新）。例如，检查一下自己：http://www.countryipblocks.net/country-blocks/select-formats/

# Country: BULGARIA
# ISO Code: BG
# Total Networks: 497
# Total Subnets:  4,148,224
31.13.192.0/18
31.41.16.0/21
31.211.128.0/19
37.60.136.0/21
37.63.0.0/17
37.130.240.0/21
37.157.136.0/21
37.157.160.0/19
46.10.0.0/16
46.16.192.0/21
46.35.160.0/19
46.40.64.0/18
46.47.64.0/18
46.55.128.0/17
46.229.192.0/20
46.232.152.0/21
46.233.0.0/18
46.237.64.0/18
46.238.0.0/18
46.249.64.0/19
46.252.48.0/20
46.253.0.0/20
46.254.128.0/21
62.44.96.0/19
62.73.64.0/18
62.176.64.0/19
62.176.96.0/19
62.182.112.0/21
62.204.128.0/19
62.213.160.0/19
62.221.128.0/19
77.70.0.0/17
77.71.0.0/17
77.76.0.0/18
77.76.128.0/18
77.77.0.0/18
77.77.128.0/18
77.78.0.0/18
77.78.128.0/18
77.85.0.0/16
77.95.232.0/21
77.236.160.0/19
77.238.64.0/19
77.246.208.0/20
78.40.136.0/21
78.83.0.0/16
78.90.0.0/16
78.108.240.0/20
78.128.0.0/17
78.130.128.0/17
78.142.0.0/18
78.154.0.0/19
78.159.128.0/19
79.100.0.0/16
79.110.112.0/20
79.124.0.0/18
79.124.64.0/19
79.132.0.0/19
79.134.32.0/19
79.134.160.0/19
80.72.64.0/20
80.72.80.0/20
80.78.224.0/20
80.80.128.0/20
80.80.144.0/20
80.95.16.0/20
80.253.48.0/20
81.161.240.0/20
82.101.64.0/18
82.103.64.0/18
82.118.224.0/19
82.119.64.0/19
82.137.64.0/18
82.146.0.0/19
82.147.128.0/19
82.199.192.0/19
83.97.24.0/21
83.97.64.0/21
83.142.16.0/21
83.143.144.0/21
83.143.176.0/21
83.143.248.0/21
83.148.64.0/18
83.222.160.0/19
83.228.0.0/17
84.21.192.0/19
84.22.0.0/19
84.38.240.0/20
84.40.64.0/18
84.43.128.0/17
84.54.128.0/18
84.201.192.0/20
84.238.128.0/17
84.242.128.0/18
84.252.0.0/18
85.11.128.0/18
85.14.0.0/18
85.91.128.0/19
85.95.64.0/19
85.118.64.0/19
85.118.192.0/21
85.130.0.0/17
85.187.0.0/16
85.196.128.0/18
85.217.128.0/17
85.239.128.0/19
85.255.128.0/20
85.255.160.0/20
87.97.128.0/17
87.116.64.0/18
87.118.128.0/18
87.119.64.0/18
87.120.0.0/16
87.121.0.0/16
87.126.0.0/16
87.227.128.0/17
87.239.152.0/21
87.246.0.0/18
87.247.248.0/21
87.252.160.0/19
87.254.160.0/19
88.80.96.0/19
88.80.128.0/19
88.87.0.0/19
88.203.128.0/17
88.213.192.0/18
89.25.0.0/17
89.106.96.0/19
89.186.192.0/19
89.190.192.0/19
89.215.0.0/16
89.252.192.0/18
89.253.128.0/18
90.154.128.0/17
91.92.0.0/16
91.134.0.0/16
91.139.128.0/17
91.148.128.0/18
91.191.208.0/20
91.192.236.0/22
91.193.156.0/22
91.193.200.0/22
91.195.24.0/23
91.196.64.0/22
91.196.124.0/22
91.196.224.0/22
91.198.119.0/24
91.198.132.0/24
91.198.181.0/24
91.198.228.0/24
91.199.36.0/24
91.199.128.0/24
91.199.150.0/24
91.199.237.0/24
91.199.247.0/24
91.201.172.0/22
91.204.156.0/22
91.206.20.0/23
91.206.138.0/23
91.207.190.0/23
91.209.8.0/24
91.209.21.0/24
91.209.146.0/24
91.210.88.0/22
91.211.108.0/22
91.211.188.0/22
91.211.232.0/22
91.212.13.0/24
91.212.17.0/24
91.212.37.0/24
91.212.163.0/24
91.212.201.0/24
91.212.233.0/24
91.212.235.0/24
91.213.12.0/24
91.215.216.0/22
91.216.71.0/24
91.216.95.0/24
91.216.174.0/24
91.216.253.0/24
91.217.148.0/24
91.217.205.0/24
91.217.215.0/24
91.218.80.0/22
91.220.176.0/24
91.220.189.0/24
91.221.254.0/23
91.222.20.0/22
91.223.66.0/24
91.226.226.0/23
91.228.38.0/24
91.230.6.0/23
91.230.192.0/22
91.230.230.0/24
91.230.231.0/24
91.232.209.0/24
91.233.32.0/24
91.234.19.0/24
91.234.21.0/24
91.234.92.0/22
91.235.164.0/24
91.235.248.0/22
91.236.144.0/22
91.237.56.0/22
91.237.102.0/23
92.62.240.0/20
92.247.0.0/16
93.93.8.0/21
93.94.136.0/21
93.123.0.0/17
93.152.128.0/17
93.155.128.0/17
93.183.128.0/18
94.26.0.0/17
94.72.128.0/18
94.73.0.0/18
94.101.192.0/20
94.139.192.0/19
94.155.0.0/16
94.156.0.0/16
94.190.128.0/17
94.236.128.0/17
95.42.0.0/16
95.43.0.0/16
95.87.0.0/18
95.87.192.0/18
95.111.0.0/17
95.140.208.0/20
95.158.128.0/18
95.168.224.0/19
95.169.192.0/19
109.104.192.0/19
109.107.64.0/19
109.120.192.0/18
109.121.128.0/18
109.121.192.0/18
109.160.0.0/17
109.199.128.0/19
109.199.224.0/19
128.140.176.0/20
130.185.192.0/18
130.204.0.0/16
145.255.192.0/19
149.62.192.0/18
158.58.192.0/18
164.138.216.0/21
176.12.0.0/18
176.67.232.0/21
176.222.0.0/20
178.16.128.0/20
178.75.192.0/18
178.132.80.0/21
178.169.128.0/17
178.239.112.0/20
178.239.224.0/20
178.249.168.0/21
178.254.192.0/18
188.124.64.0/19
188.126.0.0/19
188.127.64.0/19
188.254.128.0/17
192.58.32.0/22
192.92.129.0/24
192.162.231.0/24
193.9.16.0/24
193.16.102.0/24
193.16.157.0/24
193.16.246.0/24
193.17.229.0/24
193.19.172.0/22
193.22.103.0/24
193.22.248.0/24
193.23.52.0/24
193.24.240.0/22
193.25.162.0/23
193.26.14.0/24
193.26.216.0/24
193.28.250.0/24
193.29.55.0/24
193.30.228.0/22
193.36.35.0/24
193.37.238.0/24
193.41.64.0/22
193.41.182.0/23
193.41.188.0/22
193.43.26.0/24
193.47.74.0/24
193.68.0.0/19
193.68.96.0/19
193.68.128.0/17
193.84.86.0/24
193.93.24.0/22
193.104.79.0/24
193.104.165.0/24
193.105.60.0/24
193.105.148.0/24
193.105.151.0/24
193.105.196.0/24
193.107.36.0/22
193.107.68.0/22
193.108.24.0/24
193.108.32.0/23
193.109.54.0/23
193.110.82.0/24
193.110.132.0/24
193.110.159.0/24
193.110.216.0/21
193.111.89.0/24
193.111.194.0/23
193.138.67.0/24
193.142.0.0/24
193.150.67.0/24
193.151.20.0/22
193.151.80.0/22
193.160.159.0/24
193.161.192.0/24
193.164.222.0/23
193.169.198.0/23
193.178.152.0/23
193.178.166.0/24
193.178.222.0/24
193.186.38.0/24
193.192.48.0/23
193.192.56.0/23
193.193.162.0/23
193.193.164.0/24
193.193.182.0/24
193.194.140.0/23
193.194.156.0/24
193.200.1.0/24
193.200.2.0/24
193.200.8.0/24
193.200.12.0/24
193.200.14.0/23
193.200.16.0/23
193.200.24.0/24
193.200.28.0/24
193.201.114.0/23
193.201.172.0/24
193.201.240.0/22
193.202.108.0/24
193.203.198.0/23
193.218.0.0/24
193.228.152.0/24
193.254.29.0/24
194.0.32.0/24
194.0.235.0/24
194.8.4.0/24
194.8.53.0/24
194.8.60.0/24
194.9.6.0/23
194.12.224.0/19
194.34.12.0/24
194.36.167.0/24
194.48.206.0/24
194.50.73.0/24
194.50.76.0/24
194.50.122.0/24
194.54.140.0/22
194.63.136.0/22
194.79.12.0/22
194.88.228.0/23
194.88.250.0/23
194.110.205.0/24
194.141.0.0/19
194.141.32.0/19
194.141.64.0/18
194.141.128.0/17
194.145.63.0/24
194.145.160.0/22
194.146.232.0/22
194.150.116.0/22
194.150.180.0/23
194.153.118.0/24
194.153.145.0/24
194.169.231.0/24
194.187.132.0/22
194.246.110.0/23
195.8.222.0/23
195.10.193.0/24
195.20.20.0/22
195.20.24.0/22
195.22.146.0/23
195.24.32.0/19
195.24.88.0/21
195.28.6.0/23
195.34.96.0/19
195.35.84.0/24
195.39.198.0/23
195.39.212.0/23
195.42.142.0/23
195.47.193.0/24
195.54.44.0/23
195.62.22.0/23
195.64.160.0/23
195.66.125.0/24
195.68.200.0/23
195.68.214.0/23
195.69.108.0/22
195.69.120.0/22
195.69.164.0/22
195.72.112.0/24
195.74.85.0/24
195.85.215.0/24
195.88.74.0/23
195.88.140.0/23
195.96.224.0/19
195.110.24.0/23
195.114.112.0/23
195.128.132.0/24
195.128.134.0/24
195.128.224.0/23
195.137.252.0/23
195.138.128.0/19
195.149.71.0/24
195.149.248.0/21
195.162.72.0/23
195.170.166.0/24
195.170.178.0/24
195.177.218.0/23
195.177.248.0/23
195.178.8.0/23
195.178.98.0/23
195.178.116.0/23
195.182.41.0/24
195.182.44.0/24
195.189.80.0/22
195.189.224.0/23
195.191.34.0/23
195.191.60.0/23
195.191.94.0/23
195.191.148.0/23
195.214.248.0/21
195.216.228.0/24
195.225.51.0/24
195.225.124.0/22
195.225.252.0/22
195.230.0.0/19
195.234.84.0/22
195.234.236.0/22
195.238.84.0/23
195.242.106.0/23
195.242.126.0/23
195.242.240.0/22
195.246.240.0/23
212.5.32.0/19
212.5.128.0/19
212.21.128.0/19
212.25.32.0/19
212.36.0.0/19
212.39.64.0/19
212.43.32.0/19
212.45.64.0/19
212.50.0.0/19
212.50.64.0/19
212.56.0.0/19
212.70.128.0/19
212.72.192.0/19
212.73.128.0/19
212.75.0.0/19
212.91.160.0/19
212.95.160.0/19
212.104.96.0/19
212.116.128.0/19
212.117.32.0/19
212.122.160.0/19
212.124.64.0/19
212.233.128.0/17
213.16.32.0/19
213.91.128.0/17
213.108.240.0/21
213.130.64.0/19
213.137.32.0/19
213.145.96.0/19
213.149.128.0/19
213.167.0.0/19
213.169.32.0/19
213.191.192.0/19
213.214.64.0/19
213.222.32.0/19
213.226.0.0/19
213.226.32.0/19
213.231.128.0/18
213.240.192.0/18
217.9.224.0/20
217.10.240.0/20
217.18.240.0/20
217.30.208.0/20
217.75.128.0/20
217.75.144.0/20
217.79.32.0/20
217.79.64.0/20
217.79.80.0/20
217.145.80.0/20
217.145.160.0/20
217.174.48.0/20
217.174.144.0/20

Answer 3

另一种方式 $continent = geoip_continent_code_by_name('www.example.com'); if ($continent) { echo 'This host is located in: ' . $continent; }

http://www.php.net/manual/en/function.geoip-continent-code-by-name.php