session_save_path Get and/or set the current session save path stringsession_save_path stringpath session_save_path returns the path of the current directory used to save session data. If path is specified, the path to which data is saved will be changed. On some operating systems, you may want to specify a path on a filesystem that handles lots of small files efficiently. For example, on Linux, reiserfs may provide better performance than ext2fs.