mysql存储ip_MySQL
bitsCN.com
把ip地址存成unsigned int
在mysql中
查询的时候把一个ip使用INET_ATON()把ip转换成整形，使用INET_NOTA()把整形转换成字符串ip
在php中也有这样的函数分别是，ip2long() 和long2ip()
数据量很大的话，会检索很快的 bitsCN.com
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