php man page for session_save_path

SESSION_SAVE_PATH(3)							 1						      SESSION_SAVE_PATH(3)

session_save_path - Get and/or set the current session save path

SYNOPSIS
       string session_save_path ([string  $path])

DESCRIPTION
       session_save_path(3) returns the path of the current directory used to save session data.

PARAMETERS
	      o $path
		- Session data path. If specified, the path to which data is saved will be changed. session_save_path(3) needs to be called before
		session_start(3) for that purpose.

	      Note

		      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.

RETURN VALUES
	Returns the path of the current directory used for data storage.

SEE ALSO
	The session.save_path configuration directive .

PHP Documentation Group 												      SESSION_SAVE_PATH(3)