geoip_db_avail

(PECL geoip:1.0.1)

geoip_db_avail — 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);
?>

上例将输出：

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


	PHP5中文手册 geoip_database_info geoip_db_filename GeoIP PHP Manual geoip_db_avail (PECL geoip:1.0.1) geoip_db_avail — Determine if GeoIP Database is available 说明 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. 参数 `database` The database type as an integer. You can use the various constants defined with this extension (ie: GEOIP__EDITION). 返回值 Returns `TRUE`* is database exists, `FALSE` if not found, or `NULL` on error. 范例 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); ?>` 上例将输出： GEO-106FREE 20080801 Build 1 Copyright (c) 2006 MaxMind LLC All Rights Reserved geoip_database_info geoip_db_filename GeoIP PHP Manual