Constructs a new SessionHandler object.
SessionHandler:: defines an API for implementing custom PHP session handlers.
SessionHandler:: implementation for DBM files.
SessionHandler implementation for LDAP directories.
SessionHandler:: implementation for memcache.
Constructs a new Memcache SessionHandler object.
SessionHandler:: implementation for MySQL (native).
SessionHandler implementation for PHP's built-in session handler.
SessionHandler:: implementation for Oracle 8i (native).
PostgreSQL Session Handler for PHP (native).
SessionHandler implementation for PHP's PEAR database abstraction layer.
Constructs a new SQL SessionHandler object.
SessionHandler implementation for PHP's PEAR database abstraction layer.
Attempts to return a reference to a concrete SessionHandler instance based on $driver. It will only create a new instance if no SessionHandler instance with the same parameters currently exists.