Use GeoIP Library instance in php

This article mainly introduces the use of GeoIP Library instances in php. This article provides code instances subdivided into countries and cities, for more information, see maxmind, which is the provider of the geoip database,
Sample and api instructions in many languages are also provided.
For example, php and php's geoip library are quite different, including usage methods and interface functions.
The official php geoip needs to configure the php environment, load the geoip. dll library, and specify the GEOIP Library address in php. ini.
Maxmind provides a series of. inc and. php environments that are not dependent on the environment. you only need to support php and directly use require.

1. GEOIP database

Http://dev.maxmind.com/geoip/geolite
Sub-Country: GeoLite Country
Sub-City: GeoLite City

II. Official php geoip. dll Library

Download dll http://windows.php.net/downloads/pecl/releases/geoip/1.0.8/
Modify php. ini to enable the geoip Library:
The code is as follows: extension = php_geoip.dll
Append the geoip segment and specify the database location:
The code is as follows: [geoip]
Geoip. custom_directory = "D: \ php5.3 \ geo \"

Test Code

Note that GeoIPCity. dat used in geoip. dll is GeoLiteCity. dat. when using it, pay attention to the prompt.
The code is as follows:
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 "));

3. MaxMind official PHP file function library

Documents and examples: http://dev.maxmind.com/geoip/downloadable
Modify the GeoIP. dat/GeoLiteCity. dat path in sample. php and sample_city.php in the maxmind example to your own path.
Use "./GeoIP. dat" or "./GeoLiteCity. dat" in the same directory.
Detailed to country
The code is as follows:
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 );

Detail to country cities

The code is as follows:
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-> longpolling. "\ 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-> longpolling. "\ n ";
Print $ record-> metro_code. "\ n ";
Print $ record-> area_code. "\ n ";
Print $ record-> continent_code. "\ n ";
Geoip_close ($ gi );

Depends on your development environment and the specific situation to decide which one to use