public get (mixed $index, [mixed $defaultValue], [mixed $remove]) Gets a session variable from an

public destroy ([mixed $removeData]) Destroys the active session

public destroy ([mixed $sessionId])

abstract public has (mixed $index) ...

Source

integer SESSION_NONE

public regenerateId ([mixed $deleteOldSession])

integer SESSION_NONE

integer SESSION_ACTIVE

abstract public __isset (mixed $property) ...