(PHP 4 >= 4.2.0, PHP 5 <= 5.1.2) Find all sessions with name and value

(PHP 4 >= 4.2.0, PHP 5 <= 5.1.2) Get unique id

(PHP 4, PHP 5, PHP 7) Sets user-level session storage functions

(PHP 4, PHP 5, PHP 7) Encodes the current session data as a session encoded string

(PHP 5 >= 5.4.0, PHP 7) Close the session

(PHP 4, PHP 5, PHP 7) Set the session cookie parameters

(PHP 5 >= 5.6.0, PHP 7) Re-initialize session array with original values

(PHP 4 >= 4.2.0, PHP 5 <= 5.1.2) Create a session

(PHP 4 >= 4.2.0, PHP 5 <= 5.1.2) Increment value in session

(PHP 4 >= 4.2.0, PHP 5 <= 5.1.2) Set value in session