|This deprecated feature should no longer be used, but is still available for reasons of backwards compatibility. This feature was deprecated in version 1.27.0.|
|Used to set php's session.save_handler.|
|Introduced in version:||1.16.0 (r49370)|
|Deprecated in version:||1.27.0|
|Removed in version:||still in use|
|Allowed values:||string or null|
|Other settings: Alphabetical | By function|
This is used for setting php's session.save_handler. In practice, you will almost never need to change this ever. Other options might be 'user' or 'session_mysql'.
Setting to null skips setting this entirely (which might be useful if you're doing cross-application sessions, see bug 11381).