phpmysqlip地址所在城市查询代码-ip数据库-PHP源码

程序猿

function getip(){
if($_SERVER['HTTP_X_FORWARDED_FOR']){
$online_ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
}elseif($_SERVER['HTTP_CLIENT_IP']){
$online_ip = $_SERVER['HTTP_CLIENT_IP'];
}else{
$online_ip = $_SERVER['REMOTE_ADDR'];
}
return $online_ip;
}

function ip2int($ip){
  list($ip1,$ip2,$ip3,$ip4)=explode(".",$ip);
  return $ip1*pow(256,3)+$ip2*pow(256,2)+$ip3*256+$ip4;
}
$ip=ip2int(getip());
$sql="select * from iptocity where IP_Start
echo $sheng."->".$city;

?>
mysql ip库下载地址
http://g.111cn.net/down/ipdata.rar
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