一、GEOIP数据库

细分到国家：GeoLite Country
细分到城市：GeoLite City

二、php官方geoip.dll库

修改php.ini，启用geoip库：

复制代码 代码如下:

extension=php_geoip.dll

追加geoip段，指定数据库位置：

复制代码 代码如下:

[geoip]
geoip.custom_directory = "D:\php5.3\geo\"

测试代码

注意geoip.dll中使用的 GeoIPCity.dat 即 GeoLiteCity.dat，用的时候注意看提示

复制代码 代码如下:

echo geoip_country_name_by_name( "8.8.8.8" ) . "\n";
print_r( geoip_record_by_name( "8.8.8.8" ) );
echo geoip_country_name_by_name( "61.139.2.69" ). "\n";
print_r( geoip_record_by_name(  "61.139.2.69" ) );

三、MaxMind官方php文件函数库

文档和示例：http://dev.maxmind.com/geoip/downloadable
修改maxmind示例中 sample.php 和 sample_city.php 中 GeoIP.dat/GeoLiteCity.dat 路径为你自己的路径
同一目录用 “./GeoIP.dat” 或 “./GeoLiteCity.dat” 即可。
详细到国家

复制代码 代码如下:

include("geoip.inc");
$gi = geoip_open( "./GeoIP.dat", GEOIP_STANDARD );
echo geoip_country_code_by_addr($gi, "8.8.8.8") . "\t" . geoip_country_name_by_addr($gi, "8.8.8.8") . "\n";
echo geoip_country_code_by_addr($gi, "61.139.2.69") . "\t" . geoip_country_name_by_addr($gi, "61.139.2.69") . "\n";
geoip_close($gi);

详细到国家城市

复制代码 代码如下:

include("geoipcity.inc");
include("geoipregionvars.php");
$gi = geoip_open("./GeoLiteCity.dat",GEOIP_STANDARD);
 
$record = geoip_record_by_addr($gi,"8.8.8.8");
print $record->country_code . " " . $record->country_code3 . " " . $record->country_name . "\n";
print $record->region . " " . $GEOIP_REGION_NAME[$record->country_code][$record->region] . "\n";
print $record->city . "\n";
print $record->postal_code . "\n";
print $record->latitude . "\n";
print $record->longitude . "\n";
print $record->metro_code . "\n";
print $record->area_code . "\n";
print $record->continent_code . "\n";
 
print "\n-----\n";
$record = geoip_record_by_addr($gi,"61.139.2.69");
print $record->country_code . " " . $record->country_code3 . " " . $record->country_name . "\n";
print $record->region . " " . $GEOIP_REGION_NAME[$record->country_code][$record->region] . "\n";
print $record->city . "\n";
print $record->postal_code . "\n";
print $record->latitude . "\n";
print $record->longitude . "\n";
print $record->metro_code . "\n";
print $record->area_code . "\n";
print $record->continent_code . "\n";
geoip_close($gi);