PHP Manual: Determine if GeoIP Database is available

bool geoip_db_avail(int $database)

The geoip_db_avail function returns if the corresponding GeoIP Database is available and can be opened on disk.

It does not indicate if the file is a proper database, only if it is readable.

database: The database type as an integer. You can use the various constants defined with this extension (ie: GEOIP_*_EDITION).

Returns true is database exists, false if not found, or null on error.

Example #1 A geoip_db_avail example

This will output the current database version string.

<?php

if (geoip_db_avail(GEOIP_COUNTRY_EDITION))
    print geoip_database_info(GEOIP_COUNTRY_EDITION);
?>

The above example will output:

GEO-106FREE 20080801 Build 1 Copyright (c) 2006 MaxMind LLC All Rights Reserved