(PECL geoip >= 1.0.1)
geoip_db_filename — Returns the filename of the corresponding GeoIP Database
$database
)The geoip_db_filename() function returns the filename of the corresponding GeoIP Database.
It does not indicate if the file exists or not on disk, only where the library is looking for the database.
database
The database type as an integer. You can use the various constants defined with this extension (ie: GEOIP_*_EDITION).
Returns the filename of the corresponding database, or NULL on error.
Example #1 A geoip_db_filename() example
This will output the filename of the corresponding database.
<?php
print geoip_db_filename(GEOIP_COUNTRY_EDITION);
?>
以上例程会输出：
/usr/share/GeoIP/GeoIP.dat
Loc d'Anterroches (2010-08-18 05:50:31)
To quickly know which databases are available on your system:
<?php
$cst = array(
'GEOIP_COUNTRY_EDITION' => GEOIP_COUNTRY_EDITION,
'GEOIP_REGION_EDITION_REV0' => GEOIP_REGION_EDITION_REV0,
'GEOIP_CITY_EDITION_REV0' => GEOIP_CITY_EDITION_REV0,
'GEOIP_ORG_EDITION' => GEOIP_ORG_EDITION,
'GEOIP_ISP_EDITION' => GEOIP_ISP_EDITION,
'GEOIP_CITY_EDITION_REV1' => GEOIP_CITY_EDITION_REV1,
'GEOIP_REGION_EDITION_REV1' => GEOIP_REGION_EDITION_REV1,
'GEOIP_PROXY_EDITION' => GEOIP_PROXY_EDITION,
'GEOIP_ASNUM_EDITION' => GEOIP_ASNUM_EDITION,
'GEOIP_NETSPEED_EDITION' => GEOIP_NETSPEED_EDITION,
'GEOIP_DOMAIN_EDITION' => GEOIP_DOMAIN_EDITION,
);
foreach ($cst as $k=>$v) {
echo $k.': '.geoip_db_filename($v).' '.(geoip_db_avail($v) ? 'Available':'').'<br>';
}
?>
The only drawback of the PECL extension with respect to a pure PHP implementation is that you cannot select yourself where the database is. So, if you get a new version of the database, you need to put in the standard place and you may need root access to do so.