public function destroy($session_id)
	{
		if (!$this->database->del($this->key($session_id)))
		{
			return false;
		}
		return true;
	}
public function destroy($session_id)
	{
		if (!$this->database->del($this->key($session_id)))
		{
			return false;
		}
		return true;
	}
public function destroy ( $ session_id ) { if ( ! $ this -> database -> del ( $ this -> key ( $ session_id ) ) ) { return false ; } return true ; }
Delete session hash

@param  string  $session_id  Session Id
@return boolean              Destroyed or not
Delete session hash