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

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CGI::Session::Driver::file(3pm)User Contributed Perl DocumentationCGI::Session::Driver::file(3pm)

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

perl v5.22.1                                2016-01-15            CGI::Session::Driver::file(3pm)

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