PHP中IP地址转真实地址
在网站项目开发中,可能会需要记录下访问者的IP地址。但是,在后台查看IP地址时,面对一堆数字,确实不够直观。下面介绍一个IP地址转真实地址的一个函数,程序里直接调用即可。functionip2city($ip){$dat_path='qqwry.dat';//IP数据文件路径(这里不提供下载
在网站项目开发中,可能会需要记录下访问者的IP地址。但是,在后台查看IP地址时,面对一堆数字,确实不够直观。下面介绍一个IP地址转真实地址的一个函数,程序里直接调用即可。functionip2city($ip){ $dat_path='qqwry.dat';//IP数据文件路径(这里不提供下载,大家可以google一下qqwry.dat,下载这个文件到本地) if(!preg_match("/^d{1,3}.d{1,3}.d{1,3}.d{1,3}$/",$ip)){ return'IP地址错误!'; } if(!$fd=@fopen($dat_path,'rb')){ return'IP数据文件无法读取!'; }//分解IP进行运算,得出整形数 $ip=explode('.',$ip); $ipNum=$ip[0]*16777216+$ip[1]*65536+$ip[2...
原文地址:PHP中IP地址转真实地址, 感谢原作者分享。

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