diff options
Diffstat (limited to 'user_guide_src/source/libraries/sessions.rst')
| -rw-r--r-- | user_guide_src/source/libraries/sessions.rst | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/user_guide_src/source/libraries/sessions.rst b/user_guide_src/source/libraries/sessions.rst index e2780683f..9fc33247b 100644 --- a/user_guide_src/source/libraries/sessions.rst +++ b/user_guide_src/source/libraries/sessions.rst @@ -433,20 +433,22 @@ all of the options and their effects. You'll find the following Session related preferences in your **application/config/config.php** file: -======================== =============== ======================================== ============================================================================================ -Preference Default Options Description -======================== =============== ======================================== ============================================================================================ -**sess_driver** files files/database/redis/memcached/*custom* The session storage driver to use. -**sess_cookie_name** ci_session [A-Za-z\_-] characters only The name used for the session cookie. -**sess_expiration** 7200 (2 hours) Time in seconds (integer) The number of seconds you would like the session to last. - If you would like a non-expiring session (until browser is closed) set the value to zero: 0 -**sess_save_path** NULL None Specifies the storage location, depends on the driver being used. -**sess_time_to_update** 300 Time in seconds (integer) This option controls how often the session class will regenerate itself and create a new - session ID. Setting it to 0 will disable session ID regeneration. -**sess_match_ip** FALSE TRUE/FALSE (boolean) Whether to validate the user's IP address when reading the session cookie. - Note that some ISPs dynamically changes the IP, so if you want a non-expiring session you - will likely set this to FALSE. -======================== =============== ======================================== ============================================================================================ +============================ =============== ======================================== ============================================================================================ +Preference Default Options Description +============================ =============== ======================================== ============================================================================================ +**sess_driver** files files/database/redis/memcached/*custom* The session storage driver to use. +**sess_cookie_name** ci_session [A-Za-z\_-] characters only The name used for the session cookie. +**sess_expiration** 7200 (2 hours) Time in seconds (integer) The number of seconds you would like the session to last. + If you would like a non-expiring session (until browser is closed) set the value to zero: 0 +**sess_save_path** NULL None Specifies the storage location, depends on the driver being used. +**sess_match_ip** FALSE TRUE/FALSE (boolean) Whether to validate the user's IP address when reading the session cookie. + Note that some ISPs dynamically changes the IP, so if you want a non-expiring session you + will likely set this to FALSE. +**sess_time_to_update** 300 Time in seconds (integer) This option controls how often the session class will regenerate itself and create a new + session ID. Setting it to 0 will disable session ID regeneration. +**sess_regenerate_destroy** FALSE TRUE/FALSE (boolean) Whether to destroy session data associated with the old session ID when auto-regenerating + the session ID. When set to FALSE, the data will be later deleted by the garbage collector. +============================ =============== ======================================== ============================================================================================ .. note:: As a last resort, the Session library will try to fetch PHP's session related INI settings, as well as legacy CI settings such as @@ -594,7 +596,7 @@ For MySQL:: `id` varchar(40) NOT NULL, `ip_address` varchar(45) NOT NULL, `timestamp` int(10) unsigned DEFAULT 0 NOT NULL, - `data` blob DEFAULT '' NOT NULL, + `data` blob NOT NULL, PRIMARY KEY (id), KEY `ci_sessions_timestamp` (`timestamp`) ); @@ -628,6 +630,11 @@ also do the following, after creating the table:: Redis Driver ------------ +.. note:: Since Redis doesn't have a locking mechanism exposed, locks for + this driver are emulated by a separate value that is kept for up + to 5 seconds. You may experience issues if your page loads take + longer than that! + Redis is a storage engine typically used for caching and popular because of its high performance, which is also probably your reason to use the 'redis' session driver. @@ -661,6 +668,11 @@ sufficient:: Memcached Driver ---------------- +.. note:: Since Memcache doesn't have a locking mechanism exposed, locks + for this driver are emulated by a separate value that is kept for + up to 5 seconds. You may experience issues if your page loads take + longer than that! + The 'memcached' driver is very similar to the 'redis' one in all of its properties, except perhaps for availability, because PHP's `Memcached <http://php.net/memcached>`_ extension is distributed via PECL and some |