1. 将联通IP段定义成关联数组。起始地址为KEY，结束地址为VALUE。IP段在这里。
2. 通过二分法查找关联数组的KEY数组中第一个不大于此IP的KEY的位置$i
3. 从$i开始遍历KEY数组，判断IP是否处于关联数组中
<?php
$ips = array(
'1.24.0.0' => '1.31.255.255',
'1.56.0.0' => '1.63.255.255',
'1.188.0.0' => '1.191.255.255',
'14.204.0.0' => '14.205.255.255',
'27.8.0.0' => '27.15.255.255',
'27.36.0.0' => '27.39.255.255',
'27.40.0.0' => '27.47.255.255',
'27.50.128.0' => '27.50.255.255',
'27.54.192.0' => '27.54.255.255',
'27.98.224.0' => '27.98.255.255',
'27.106.128.0' => '27.106.191.255',
'27.115.0.0' => '27.115.127.255',
'27.131.220.0' => '27.131.223.255',
'27.192.0.0' => '27.223.255.255',
'36.32.0.0' => '36.35.255.255',
'36.248.0.0' => '36.251.255.255',
'42.4.0.0' => '42.7.255.255',
'42.48.0.0' => '42.49.255.255',
'42.51.0.0' => '42.51.255.255',
'42.52.0.0' => '42.55.255.255',
'42.56.0.0' => '42.59.255.255',
'42.63.0.0' => '42.63.255.255',
'42.84.0.0' => '42.87.255.255',
'42.176.0.0' => '42.183.255.255',
'42.224.0.0' => '42.239.255.255',
'47.153.128.0' => '47.153.191.255',
'47.154.0.0' => '47.154.255.255',
'47.200.192.0' => '47.200.255.255',
'58.16.0.0' => '58.23.255.255',
'58.24.0.0' => '58.25.255.255',
'58.30.64.0' => '58.30.127.255',
'58.30.128.0' => '58.30.255.255',
'58.31.0.0' => '58.31.63.255',
'58.31.192.0' => '58.31.255.255',
'58.68.128.0' => '58.68.143.255',
'58.68.144.0' => '58.68.151.255',
'58.83.17.0' => '58.83.17.255',
'58.116.0.0' => '58.119.255.255',
'58.128.0.0' => '58.135.255.255',
'58.144.0.0' => '58.144.255.255',
'58.240.0.0' => '58.255.255.255',
'59.108.32.0' => '59.108.63.255',
'59.108.64.0' => '59.108.127.255',
'59.109.64.0' => '59.109.79.255',
'59.109.80.0' => '59.109.83.255',
'60.0.0.0' => '60.31.255.255',
'60.63.0.0' => '60.63.255.255',
'60.194.0.0' => '60.195.255.255',
'60.204.0.0' => '60.204.255.255',
'60.206.0.0' => '60.207.255.255',
'60.208.0.0' => '60.223.255.255',
'60.255.0.0' => '60.255.255.255',
'61.4.176.0' => '61.4.191.255',
'61.28.0.0' => '61.28.127.255',
'61.48.0.0' => '61.55.255.255',
'61.133.0.0' => '61.133.127.255',
'61.134.96.0' => '61.134.127.255',
'61.134.128.0' => '61.134.255.255',
'61.135.0.0' => '61.135.255.255',
'61.136.0.0' => '61.136.127.255',
'61.137.128.0' => '61.137.255.255',
'61.138.0.0' => '61.138.127.255',
'61.138.128.0' => '61.138.191.255',
'61.139.128.0' => '61.139.191.255',
'61.148.0.0' => '61.149.255.255',
'61.156.0.0' => '61.156.255.255',
'61.158.0.0' => '61.158.255.255',
'61.159.0.0' => '61.159.63.255',
'61.161.0.0' => '61.161.63.255',
'61.161.128.0' => '61.161.255.255',
'61.162.0.0' => '61.163.255.255',
'61.167.0.0' => '61.167.255.255',
'61.168.0.0' => '61.168.255.255',
'61.176.0.0' => '61.176.255.255',
'61.179.0.0' => '61.179.255.255',
'61.180.128.0' => '61.180.255.255',
'61.181.0.0' => '61.181.255.255',
'61.182.0.0' => '61.182.255.255',
'61.189.0.0' => '61.189.127.255',
'61.233.16.0' => '61.233.31.255',
'61.234.0.0' => '61.234.255.255',
'61.237.224.0' => '61.237.239.255',
'61.240.0.0' => '61.243.255.255',
'101.16.0.0' => '101.31.255.255',
'101.64.0.0' => '101.71.255.255',
'101.72.0.0' => '101.75.255.255',
'101.200.0.0' => '101.201.255.255',
'101.204.0.0' => '101.207.255.255',
'101.232.0.0' => '101.233.255.255',
'110.6.0.0' => '110.7.255.255',
'110.16.0.0' => '110.19.255.255',
'110.52.0.0' => '110.53.255.255',
'110.72.0.0' => '110.73.255.255',
'110.172.224.0' => '110.172.255.255',
'110.228.0.0' => '110.231.255.255',
'110.236.0.0' => '110.236.255.255',
'110.240.0.0' => '110.255.255.255',
'111.67.192.0' => '111.67.207.255',
'111.68.64.0' => '111.68.95.255',
'111.85.0.0' => '111.85.255.255',
'111.160.0.0' => '111.167.255.255',
'111.192.0.0' => '111.207.255.255',
'111.208.0.0' => '111.211.255.255',
'111.228.0.0' => '111.231.255.255',
'112.64.0.0' => '112.65.255.255',
'112.80.0.0' => '112.95.255.255',
'112.96.0.0' => '112.97.255.255',
'112.109.128.0' => '112.109.255.255',
'112.111.0.0' => '112.111.255.255',
'112.122.0.0' => '112.123.255.255',
'112.132.0.0' => '112.132.255.255',
'112.192.0.0' => '112.195.255.255',
'112.224.0.0' => '112.255.255.255',
'113.0.0.0' => '113.7.255.255',
'113.8.0.0' => '113.9.255.255',
'113.18.0.0' => '113.18.255.255',
'113.31.16.0' => '113.31.31.255',
'113.31.32.0' => '113.31.47.255',
'113.56.0.0' => '113.57.255.255',
'113.58.0.0' => '113.58.255.255',
'113.59.0.0' => '113.59.127.255',
'113.194.0.0' => '113.195.255.255',
'113.200.0.0' => '113.201.255.255',
'113.204.0.0' => '113.207.255.255',
'113.209.192.0' => '113.209.195.255',
'113.209.255.0' => '113.209.255.255',
'113.213.0.0' => '113.213.127.255',
'113.224.0.0' => '113.239.255.255',
'114.28.128.0' => '114.28.255.255',
'114.54.0.0' => '114.55.255.255',
'114.60.0.0' => '114.63.255.255',
'114.66.0.0' => '114.66.3.255',
'114.110.0.0' => '114.110.15.255',
'114.110.64.0' => '114.110.127.255',
'114.111.0.0' => '114.111.31.255',
'114.112.16.0' => '114.112.17.255',
'114.112.24.0' => '114.112.31.255',
'114.112.136.0' => '114.112.143.255',
'114.112.144.0' => '114.112.159.255',
'114.112.160.0' => '114.112.191.255',
'114.112.192.0' => '114.112.199.255',
'114.113.16.0' => '114.113.31.255',
'114.113.32.0' => '114.113.63.255',
'114.113.64.0' => '114.113.127.255',
'114.113.128.0' => '114.113.135.255',
'114.113.144.0' => '114.113.159.255',
'114.113.208.0' => '114.113.209.255',
'114.132.128.0' => '114.132.255.255',
'114.208.0.0' => '114.211.255.255',
'114.240.0.0' => '114.255.255.255',
'115.35.128.0' => '115.35.255.255',
'115.46.0.0' => '115.46.255.255',
'115.48.0.0' => '115.63.255.255',
'115.85.192.0' => '115.85.255.255',
'115.100.0.0' => '115.103.255.255',
'115.172.0.0' => '115.175.255.255',
'116.2.0.0' => '116.3.255.255',
'116.60.0.0' => '116.63.255.255',
'116.70.0.0' => '116.70.63.255',
'116.90.80.0' => '116.90.87.255',
'116.90.184.0' => '116.90.191.255',
'116.95.0.0' => '116.95.255.255',
'116.112.0.0' => '116.115.255.255',
'116.116.0.0' => '116.117.255.255',
'116.128.0.0' => '116.128.31.255',
'116.193.16.0' => '116.193.17.255',
'116.193.18.0' => '116.193.18.255',
'116.194.0.0' => '116.195.255.255',
'116.199.0.0' => '116.199.127.255',
'116.199.128.0' => '116.199.159.255',
'116.213.128.0' => '116.213.159.255',
'116.214.32.0' => '116.214.63.255',
'116.216.0.0' => '116.219.255.255',
'116.242.0.0' => '116.243.255.255',
'116.244.0.0' => '116.245.255.255',
'116.254.128.0' => '116.254.255.255',
'116.255.128.0' => '116.255.255.255',
'117.8.0.0' => '117.15.255.255',
'117.74.64.0' => '117.74.79.255',
'117.75.0.0' => '117.75.255.255',
'117.76.0.0' => '117.79.255.255',
'117.100.0.0' => '117.101.255.255',
'117.106.0.0' => '117.107.255.255',
'117.112.0.0' => '117.119.255.255',
'117.120.64.0' => '117.120.127.255',
'117.121.0.0' => '117.121.127.255',
'117.121.128.0' => '117.121.191.255',
'118.24.0.0' => '118.25.255.255',
'118.26.16.0' => '118.26.31.255',
'118.26.128.0' => '118.26.191.255',
'118.72.0.0' => '118.79.255.255',
'118.80.0.0' => '118.81.255.255',
'118.88.32.0' => '118.88.63.255',
'118.88.64.0' => '118.88.127.255',
'118.88.128.0' => '118.88.255.255',
'118.102.16.0' => '118.102.31.255',
'118.132.0.0' => '118.135.255.255',
'118.144.128.0' => '118.144.191.255',
'118.185.0.0' => '118.185.255.255',
'118.193.240.0' => '118.193.247.255',
'118.194.128.0' => '118.194.135.255',
'118.194.192.0' => '118.194.207.255',
'118.194.232.0' => '118.194.239.255',
'118.212.0.0' => '118.212.255.255',
'118.224.0.0' => '118.227.255.255',
'118.244.0.0' => '118.247.255.255',
'119.4.0.0' => '119.7.255.255',
'119.19.0.0' => '119.19.1.255',
'119.32.0.0' => '119.35.255.255',
'119.36.0.0' => '119.36.255.255',
'119.37.0.0' => '119.37.127.255',
'119.37.128.0' => '119.37.191.255',
'119.38.0.0' => '119.38.127.255',
'119.38.128.0' => '119.38.191.255',
'119.39.0.0' => '119.39.255.255',
'119.40.0.0' => '119.40.63.255',
'119.40.128.0' => '119.40.255.255',
'119.42.0.0' => '119.42.31.255',
'119.42.224.0' => '119.42.255.255',
'119.48.0.0' => '119.55.255.255',
'119.57.0.0' => '119.57.63.255',
'119.57.64.0' => '119.57.79.255',
'119.59.128.0' => '119.59.255.255',
'119.62.0.0' => '119.62.255.255',
'119.63.32.0' => '119.63.63.255',
'119.80.32.0' => '119.80.47.255',
'119.80.56.0' => '119.80.63.255',
'119.80.64.0' => '119.80.127.255',
'119.80.128.0' => '119.80.159.255',
'119.81.0.0' => '119.81.255.255',
'119.88.0.0' => '119.88.127.255',
'119.108.0.0' => '119.109.255.255',
'119.112.0.0' => '119.119.255.255',
'119.148.160.0' => '119.148.175.255',
'119.161.128.0' => '119.161.191.255',
'119.161.208.0' => '119.161.223.255',
'119.161.224.0' => '119.161.255.255',
'119.162.0.0' => '119.163.255.255',
'119.164.0.0' => '119.167.255.255',
'119.176.0.0' => '119.191.255.255',
'119.232.0.0' => '119.233.255.255',
'119.248.0.0' => '119.251.255.255',
'119.253.32.0' => '119.253.63.255',
'119.253.128.0' => '119.253.255.255',
'119.255.0.0' => '119.255.63.255',
'120.0.0.0' => '120.15.255.255',
'120.31.0.0' => '120.31.255.255',
'120.65.0.0' => '120.65.255.255',
'120.66.0.0' => '120.66.255.255',
'120.67.128.0' => '120.67.255.255',
'120.80.0.0' => '120.87.255.255',
'120.92.0.0' => '120.92.255.255',
'120.128.0.0' => '120.131.255.255',
'120.195.0.0' => '120.195.31.255',
'120.195.32.0' => '120.195.47.255',
'121.5.0.0' => '121.5.0.255',
'121.5.16.0' => '121.5.23.255',
'121.5.32.0' => '121.5.47.255',
'121.16.0.0' => '121.31.255.255',
'121.40.0.0' => '121.43.255.255',
'121.51.0.0' => '121.51.255.255',
'121.52.208.0' => '121.52.223.255',
'121.52.224.0' => '121.52.255.255',
'121.55.0.0' => '121.55.63.255',
'121.68.0.0' => '121.71.255.255',
'121.76.0.0' => '121.77.255.255',
'121.79.128.0' => '121.79.143.255',
'121.79.144.0' => '121.79.147.255',
'121.89.0.0' => '121.89.255.255',
'121.100.128.0' => '121.100.255.255',
'121.101.208.0' => '121.101.223.255',
'121.196.0.0' => '121.199.255.255',
'122.0.64.0' => '122.0.127.255',
'122.0.128.0' => '122.0.255.255',
'122.10.228.0' => '122.10.231.255',
'122.10.232.0' => '122.10.239.255',
'122.10.240.0' => '122.10.243.255',
'122.11.40.0' => '122.11.47.255',
'122.11.48.0' => '122.11.63.255',
'122.15.0.0' => '122.15.255.255',
'122.49.0.0' => '122.49.63.255',
'122.96.0.0' => '122.97.255.255',
'122.102.0.0' => '122.102.15.255',
'122.102.64.0' => '122.102.79.255',
'122.112.0.0' => '122.112.31.255',
'122.112.128.0' => '122.112.255.255',
'122.113.0.0' => '122.113.63.255',
'122.136.0.0' => '122.143.255.255',
'122.156.0.0' => '122.159.255.255',
'122.188.0.0' => '122.191.255.255',
'122.192.0.0' => '122.195.255.255',
'122.200.64.0' => '122.200.127.255',
'122.248.48.0' => '122.248.63.255',
'123.4.0.0' => '123.7.255.255',
'123.8.0.0' => '123.15.255.255',
'123.56.0.0' => '123.57.255.255',
'123.80.0.0' => '123.80.255.255',
'123.103.2.0' => '123.103.3.255',
'123.103.4.0' => '123.103.7.255',
'123.103.8.0' => '123.103.15.255',
'123.103.16.0' => '123.103.31.255',
'123.103.32.0' => '123.103.47.255',
'123.108.208.0' => '123.108.211.255',
'123.108.212.0' => '123.108.213.255',
'123.108.216.0' => '123.108.217.255',
'123.108.220.0' => '123.108.223.255',
'123.112.0.0' => '123.127.255.255',
'123.128.0.0' => '123.135.255.255',
'123.138.0.0' => '123.139.255.255',
'123.144.0.0' => '123.147.255.255',
'123.148.0.0' => '123.148.255.255',
'123.152.0.0' => '123.159.255.255',
'123.176.80.0' => '123.176.95.255',
'123.188.0.0' => '123.191.255.255',
'123.196.0.0' => '123.197.255.255',
'123.232.0.0' => '123.235.255.255',
'123.253.0.0' => '123.253.255.255',
'124.14.160.0' => '124.14.191.255',
'124.16.248.0' => '124.16.255.255',
'124.21.0.0' => '124.21.255.255',
'124.42.0.0' => '124.42.127.255',
'124.64.0.0' => '124.65.255.255',
'124.66.0.0' => '124.66.127.255',
'124.67.0.0' => '124.67.255.255',
'124.68.0.0' => '124.71.255.255',
'124.88.0.0' => '124.95.255.255',
'124.128.0.0' => '124.135.255.255',
'124.152.0.0' => '124.152.255.255',
'124.160.0.0' => '124.167.255.255',
'124.172.0.0' => '124.173.255.255',
'124.192.0.0' => '124.193.255.255',
'124.200.0.0' => '124.207.255.255',
'124.240.128.0' => '124.240.191.255',
'124.248.32.0' => '124.248.63.255',
'124.249.0.0' => '124.249.127.255',
'125.32.0.0' => '125.47.255.255',
'125.97.240.0' => '125.97.255.255',
'125.211.0.0' => '125.211.255.255',
'125.215.0.0' => '125.215.63.255',
'135.244.80.0' => '135.244.95.255',
'138.32.244.0' => '138.32.247.255',
'139.208.0.0' => '139.215.255.255',
'144.211.80.0' => '144.211.80.255',
'144.211.138.0' => '144.211.138.255',
'161.207.0.0' => '161.207.255.255',
'168.160.224.0' => '168.160.255.255',
'171.34.0.0' => '171.35.255.255',
'171.36.0.0' => '171.39.255.255',
'171.116.0.0' => '171.119.255.255',
'171.120.0.0' => '171.127.255.255',
'175.16.0.0' => '175.23.255.255',
'175.24.0.0' => '175.27.255.255',
'175.42.0.0' => '175.43.255.255',
'175.44.0.0' => '175.44.255.255',
'175.106.128.0' => '175.106.255.255',
'175.146.0.0' => '175.147.255.255',
'175.148.0.0' => '175.151.255.255',
'175.152.0.0' => '175.155.255.255',
'175.160.0.0' => '175.175.255.255',
'175.184.128.0' => '175.184.191.255',
'180.78.0.0' => '180.78.63.255',
'180.89.128.0' => '180.89.135.255',
'180.95.128.0' => '180.95.255.255',
'180.129.128.0' => '180.129.255.255',
'180.130.0.0' => '180.130.255.255',
'180.184.0.0' => '180.185.255.255',
'180.186.0.0' => '180.186.255.255',
'180.188.0.0' => '180.188.127.255',
'180.189.148.0' => '180.189.151.255',
'180.223.0.0' => '180.223.255.255',
'182.18.0.0' => '182.18.31.255',
'182.48.96.0' => '182.48.111.255',
'182.48.112.0' => '182.48.119.255',
'182.50.4.0' => '182.50.7.255',
'182.50.112.0' => '182.50.119.255',
'182.50.120.0' => '182.50.123.255',
'182.50.124.0' => '182.50.125.255',
'182.54.0.0' => '182.54.127.255',
'182.61.128.0' => '182.61.131.255',
'182.61.192.0' => '182.61.195.255',
'182.88.0.0' => '182.91.255.255',
'182.112.0.0' => '182.127.255.255',
'182.236.128.0' => '182.236.255.255',
'183.92.0.0' => '183.95.255.255',
'183.184.0.0' => '183.191.255.255',
'192.9.202.0' => '192.9.203.255',
'192.11.23.0' => '192.11.23.255',
'192.11.26.0' => '192.11.26.255',
'192.11.39.0' => '192.11.39.255',
'192.11.236.0' => '192.11.236.255',
'192.139.135.0' => '192.139.135.255',
'192.139.136.0' => '192.139.136.255',
'192.170.79.0' => '192.170.79.255',
'194.138.202.0' => '194.138.202.255',
'202.4.252.0' => '202.4.255.255',
'202.38.8.0' => '202.38.15.255',
'202.38.147.0' => '202.38.147.255',
'202.38.161.0' => '202.38.161.255',
'202.38.164.0' => '202.38.167.255',
'202.43.144.0' => '202.43.159.255',
'202.69.4.0' => '202.69.5.255',
'202.74.8.0' => '202.74.15.255',
'202.75.208.0' => '202.75.223.255',
'202.77.39.0' => '202.77.39.255',
'202.84.16.0' => '202.84.16.255',
'202.85.208.0' => '202.85.211.255',
'202.85.216.0' => '202.85.216.255',
'202.91.176.0' => '202.91.183.255',
'202.91.184.0' => '202.91.185.255',
'202.91.186.0' => '202.91.186.255',
'202.91.190.0' => '202.91.191.255',
'202.91.224.0' => '202.91.239.255',
'202.93.252.0' => '202.93.255.255',
'202.94.1.0' => '202.94.1.255',
'202.95.0.0' => '202.95.31.255',
'202.96.0.0' => '202.96.63.255',
'202.96.64.0' => '202.96.95.255',
'202.97.128.0' => '202.97.255.255',
'202.98.0.0' => '202.98.31.255',
'202.99.0.0' => '202.99.255.255',
'202.102.128.0' => '202.102.191.255',
'202.102.224.0' => '202.102.255.255',
'202.106.0.0' => '202.106.255.255',
'202.107.0.0' => '202.107.127.255',
'202.108.0.0' => '202.108.255.255',
'202.110.0.0' => '202.110.127.255',
'202.110.192.0' => '202.110.255.255',
'202.111.128.0' => '202.111.191.255',
'202.122.128.0' => '202.122.128.255',
'202.127.40.0' => '202.127.47.255',
'202.127.48.0' => '202.127.49.255',
'202.127.112.0' => '202.127.127.255',
'202.127.208.0' => '202.127.209.255',
'202.130.224.0' => '202.130.255.255',
'202.136.254.0' => '202.136.255.255',
'202.142.16.0' => '202.142.31.255',
'202.165.208.0' => '202.165.223.255',
'202.180.128.0' => '202.180.159.255',
'203.65.240.0' => '203.65.243.255',
'203.80.144.0' => '203.80.159.255',
'203.83.56.0' => '203.83.63.255',
'203.92.160.0' => '203.92.191.255',
'203.93.0.0' => '203.93.0.255',
'203.93.8.0' => '203.93.8.255',
'203.93.18.0' => '203.93.18.255',
'203.93.27.0' => '203.93.27.255',
'203.93.28.0' => '203.93.29.255',
'203.93.64.0' => '203.93.127.255',
'203.93.192.0' => '203.93.255.255',
'203.95.0.0' => '203.95.7.255',
'203.95.104.0' => '203.95.111.255',
'203.100.192.0' => '203.100.207.255',
'203.166.160.0' => '203.166.191.255',
'203.196.5.0' => '203.196.5.255',
'203.196.6.0' => '203.196.6.255',
'203.208.0.0' => '203.208.15.255',
'203.212.0.0' => '203.212.7.255',
'203.212.8.0' => '203.212.11.255',
'210.2.24.0' => '210.2.31.255',
'210.5.128.0' => '210.5.143.255',
'210.12.155.0' => '210.12.155.255',
'210.12.232.0' => '210.12.232.255',
'210.12.240.0' => '210.12.240.255',
'210.12.242.0' => '210.12.242.255',
'210.13.0.0' => '210.13.255.255',
'210.14.64.0' => '210.14.95.255',
'210.14.160.0' => '210.14.191.255',
'210.14.192.0' => '210.14.223.255',
'210.15.32.0' => '210.15.63.255',
'210.15.96.0' => '210.15.127.255',
'210.15.128.0' => '210.15.191.255',
'210.16.128.0' => '210.16.191.255',
'210.21.0.0' => '210.21.255.255',
'210.22.48.0' => '210.22.63.255',
'210.51.0.0' => '210.51.255.255',
'210.52.128.0' => '210.52.255.255',
'210.53.0.0' => '210.53.255.255',
'210.56.192.0' => '210.56.223.255',
'210.72.160.0' => '210.72.191.255',
'210.72.192.0' => '210.72.223.255',
'210.73.0.0' => '210.73.15.255',
'210.73.112.0' => '210.73.127.255',
'210.73.160.0' => '210.73.191.255',
'210.73.224.0' => '210.73.255.255',
'210.74.0.0' => '210.74.31.255',
'210.74.64.0' => '210.74.65.255',
'210.74.96.0' => '210.74.127.255',
'210.74.128.0' => '210.74.191.255',
'210.75.160.0' => '210.75.191.255',
'210.76.32.0' => '210.76.63.255',
'210.76.96.0' => '210.76.127.255',
'210.76.192.0' => '210.76.223.255',
'210.77.0.0' => '210.77.63.255',
'210.77.176.0' => '210.77.191.255',
'210.77.192.0' => '210.77.255.255',
'210.78.0.0' => '210.78.31.255',
'210.78.128.0' => '210.78.255.255',
'210.79.224.0' => '210.79.255.255',
'210.82.0.0' => '210.83.255.255',
'210.192.96.0' => '210.192.103.255',
'210.192.112.0' => '210.192.115.255',
'210.192.120.0' => '210.192.127.255',
'211.90.0.0' => '211.91.255.255',
'211.92.0.0' => '211.95.255.255',
'211.96.0.0' => '211.97.255.255',
'211.99.32.0' => '211.99.63.255',
'211.99.64.0' => '211.99.95.255',
'211.99.224.0' => '211.99.255.255',
'211.100.192.0' => '211.100.207.255',
'211.100.224.0' => '211.100.255.255',
'211.101.128.0' => '211.101.255.255',
'211.102.128.0' => '211.102.191.255',
'211.103.128.0' => '211.103.255.255',
'211.144.0.0' => '211.145.255.255',
'211.147.0.0' => '211.147.63.255',
'211.147.160.0' => '211.147.191.255',
'211.150.64.0' => '211.150.95.255',
'211.152.0.0' => '211.159.255.255',
'211.162.0.0' => '211.162.31.255',
'211.162.104.0' => '211.162.105.255',
'211.162.200.0' => '211.162.203.255',
'211.167.96.0' => '211.167.127.255',
'211.167.176.0' => '211.167.191.255',
'211.167.224.0' => '211.167.255.255',
'218.7.0.0' => '218.7.255.255',
'218.8.0.0' => '218.11.255.255',
'218.12.0.0' => '218.12.255.255',
'218.21.128.0' => '218.21.255.255',
'218.24.0.0' => '218.27.255.255',
'218.28.0.0' => '218.29.255.255',
'218.30.223.0' => '218.30.223.255',
'218.30.254.0' => '218.30.254.255',
'218.56.0.0' => '218.59.255.255',
'218.60.0.0' => '218.61.255.255',
'218.62.0.0' => '218.62.127.255',
'218.67.128.0' => '218.67.255.255',
'218.68.0.0' => '218.69.255.255',
'218.104.0.0' => '218.107.255.255',
'218.240.0.0' => '218.240.63.255',
'218.241.0.0' => '218.241.31.255',
'218.241.64.0' => '218.241.95.255',
'218.241.128.0' => '218.241.255.255',
'218.242.0.0' => '218.242.255.255',
'218.246.96.0' => '218.246.127.255',
'218.246.224.0' => '218.246.239.255',
'218.247.32.0' => '218.247.63.255',
'218.247.128.0' => '218.247.255.255',
'218.249.0.0' => '218.249.63.255',
'219.154.0.0' => '219.155.255.255',
'219.156.0.0' => '219.157.255.255',
'219.158.0.0' => '219.158.255.255',
'219.159.0.0' => '219.159.63.255',
'219.232.0.0' => '219.235.255.255',
'219.238.128.0' => '219.238.191.255',
'219.239.0.0' => '219.239.63.255',
'220.112.0.0' => '220.115.255.255',
'220.152.128.0' => '220.152.255.255',
'220.192.0.0' => '220.207.255.255',
'220.231.0.0' => '220.231.63.255',
'220.234.0.0' => '220.234.255.255',
'220.242.0.0' => '220.243.255.255',
'220.248.0.0' => '220.251.255.255',
'220.252.0.0' => '220.252.255.255',
'221.0.0.0' => '221.7.255.255',
'221.8.0.0' => '221.11.255.255',
'221.12.0.0' => '221.12.127.255',
'221.12.128.0' => '221.12.191.255',
'221.13.0.0' => '221.13.255.255',
'221.14.0.0' => '221.15.255.255',
'221.122.0.0' => '221.122.255.255',
'221.123.128.0' => '221.123.255.255',
'221.133.240.0' => '221.133.255.255',
'221.137.0.0' => '221.137.255.255',
'221.192.0.0' => '221.195.255.255',
'221.196.0.0' => '221.197.255.255',
'221.198.0.0' => '221.198.255.255',
'221.199.0.0' => '221.199.127.255',
'221.199.128.0' => '221.199.191.255',
'221.199.192.0' => '221.199.207.255',
'221.199.224.0' => '221.199.255.255',
'221.200.0.0' => '221.207.255.255',
'221.208.0.0' => '221.223.255.255',
'222.34.0.0' => '222.34.255.255',
'222.35.0.0' => '222.35.127.255',
'222.60.0.0' => '222.60.255.255',
'222.128.0.0' => '222.143.255.255',
'222.160.0.0' => '222.163.255.255',
'222.249.0.0' => '222.249.255.255',
'223.27.184.0' => '223.27.187.255',
'223.166.0.0' => '223.167.255.255',
'223.202.0.0' => '223.202.127.255',
'223.254.0.0' => '223.254.255.255',
'223.255.0.0' => '223.255.127.255',
);
$ipk = array_keys($ips);
function ip_cmp($a, $b)
{
$a = ip2long($a);
if ($a < 0) $a += 4294967296;
$b = ip2long($b);
if ($b < 0) $b += 4294967296;
return $a - $b;
}
function binary_search_low($a, $v)
{
$ret = $low = 0;
$high = count($a) - 1;
while ($low <= $high) {
$mid = intval(($low+$high)/2);
$cmp = ip_cmp($a[$mid], $v);
if ($cmp == 0) return $mid;
else if ($cmp < 0) $low = $mid + 1;
else $high = $mid - 1;
}
$ret = min($low, $mid, $high);
return $ret;
}
function is_cuc($ip)
{
global $ips, $ipk;
$n = count($ipk);
for($i = binary_search_low($ipk, $ip); $i < $n && ip_cmp($ipk[$i], $ip) <= 0; $i++) {
if (ip_cmp($ip, $ips[$ipk[$i]]) <= 0) return true;
}
return false;
}
function test()
{
global $ips;
foreach($ips as $k => $v) {
if (!is_cuc($k)) die('bad ip:'.$k."\n");
if (!is_cuc($v)) die('bad ip:'.$v."\n");
}
if (is_cuc("58.60.37.0")) die("wrong 58.60.37.0");
if (is_cuc("218.206.191.0")) die("wrong 218.206.191.0");
}
test();