CGI::Session::Driver::file - phpMan

NAME
    CGI::Session::Driver::file - Default CGI::Session driver

SYNOPSIS
        $s = CGI::Session->new();
        $s = CGI::Session->new("driver:file", $sid);
        $s = CGI::Session->new("driver:file", $sid, {Directory=>'/tmp'});

DESCRIPTION
    When CGI::Session object is created without explicitly setting *driver*,
    *file* will be assumed. *file* - driver will store session data in plain
    files, where each session will be stored in a separate file.

    Naming conventions of session files are defined by
    $CGI::Session::Driver::file::FileName global variable. Default value of
    this variable is *cgisess_%s*, where %s will be replaced with respective
    session ID. Should you wish to set your own FileName template, do so
    before requesting for session object:

        use CGI::Session::Driver::file; # This line is mandatory.
        # Time passes...
        $CGI::Session::Driver::file::FileName = "%s.dat";
        $s = CGI::Session->new();

    For backwards compatibility with 3.x, you can also use the variable name
    $CGI::Session::File::FileName, which will override the one above.

  DRIVER ARGUMENTS
    If you wish to specify a session directory, use the Directory option,
    which denotes location of the directory where session ids are to be
    kept. If Directory is not set, defaults to whatever File::Spec->tmpdir()
    returns. So all the three lines in the SYNOPSIS section of this manual
    produce the same result on a UNIX machine.

    If specified Directory does not exist, all necessary directory hierarchy
    will be created.

    By default, sessions are created with a umask of 0660. If you wish to
    change the umask for a session, pass a UMask option with an octal
    representation of the umask you would like for said session.

NOTES
    If your OS doesn't support flock, you should understand the risks of
    going without locking the session files. Since sessions tend to be used
    in environments where race conditions may occur due to concurrent access
    of files by different processes, locking tends to be seen as a good and
    very necessary thing. If you still want to use this driver but don't
    want flock, set $CGI::Session::Driver::file::NoFlock to 1 or pass
    "NoFlock => 1" and this driver will operate without locks.

LICENSING
    For support and licensing see CGI::Session