PHP Functions Essential Reference

session_set_save_handler

bool session_set_save_handler(string open, string close, string read, 
string write, string destroy, string gc) 

open	Session init function
close	Session shutdown function
read	Session read function
write	Session write function
destroy	Destroy session function
gc	Garbage collection function

Sets handlers for custom session functions.

Returns:

TRUE on success; FALSE on error

Description:

This function takes six arguments that describe the functions used when creating your own session-handling functions. Each function can have any name, but the names must be passed in the correct order. In addition, each function must return the correct information. Using this function, it’s possible to write any session handler ...