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Certified PHP Developer Learning Resources Custom Session Handlers

Custom Session Handlers
 


 To implement database storage, or any other storage method, you will need to use session_set_save_handler() to create a set of user-level storage functions. As of PHP 5.4.0 you may create session handlers using the SessionHandlerInterface or extend internal PHP handlers by inheriting from SessionHandler.

The callbacks specified in session_set_save_handler() are methods called by PHP during the life-cycle of a session: open, read, write and close and for the housekeeping tasks: destroy for deleting a session and gc for periodic garbage collection.