Weblabor

<?php

    class SessionSaveHandler {
        protected $savePath;
        protected $sessionName;
    
        public function __construct() {
            session_set_save_handler(
                array($this, "open"),
                array($this, "close"),
                array($this, "read"),
                array($this, "write"),
                array($this, "destroy"),
                array($this, "gc")
            );
        }
    
        public function open($savePath, $sessionName) {
            $this->savePath = $savePath;
            $this->sessionName = $sessionName;
            return true;
        }
    
        public function close() { return true; }
        public function read($id) {}
        public function write($id, $data) { echo "<b>write function</b>: ".$data; }
        public function destroy($id) {}
        public function gc($maxlifetime) {}
    }
    
    new SessionSaveHandler();
    session_start();
    $_SESSION["string"] = "ok";
    $_SESSION["number"] = 100;
    echo "<b>serialized: </b>".serialize($_SESSION)."<br>";

?>