Inform PHP to operate session using custom session processing functions, without using PHP preset methods

Session_set_save_handler ("sess_open", / * session_start () calls * / "sess_close", / * sess_read ", / * session_start () call * /" sess_write ", / * Call at the end of the program * / "sess_destroy", / * session_destroy () call * / "sess_gc" / * Operating system GC process call * /);