# phpman > perldoc > Apache::Session::Store::DB_File

## NAME
    [Apache::Session::Store::DB_File](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession%3A%3AStore%3A%3ADBFile/markdown) - Use DB_File to store persistent objects

## SYNOPSIS
     use [Apache::Session::Store::DB_File](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession%3A%3AStore%3A%3ADBFile/markdown);

     my $store = new [Apache::Session::Store::DB_File](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession%3A%3AStore%3A%3ADBFile/markdown);

     $store->insert($ref);
     $store->update($ref);
     $store->materialize($ref);
     $store->remove($ref);

## DESCRIPTION
    This module fulfills the storage interface of [Apache::Session](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession/markdown). The serialized objects are stored
    in a Berkeley DB file using the DB_File Perl module. If DB_File works on your platform, this
    module should also work.

## OPTIONS
    This module requires one argument in the usual [Apache::Session](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession/markdown) style. The name of the option is
    FileName, and the value is the full path of the database file to be used as the backing store.
    If the database file does not exist, it will be created. Example:

     tie %s, '[Apache::Session::DB_File](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession%3A%3ADBFile/markdown)', undef,
        {FileName => '/tmp/sessions'};

## AUTHOR
    This module was written by Jeffrey William Baker <<jwbaker@acm.org>>.

## SEE ALSO
    [Apache::Session](https://www.chedong.com/phpMan.php/perldoc/Apache%3A%3ASession/markdown), DB_File