<?php

class Session {

        public function __construct() {
        if(array_key_exists('PHPSESSID', $_COOKIE)) {
            session_id($_COOKIE['PHPSESSID']);
        }
        session_start();
    }

    public function get($name) {
        if($this->has($name)) {
            return $_SESSION[$name];
        }

        return null;
    }

    public function has($name) {
        return array_key_exists($name, $_SESSION);
    }

    public function set($name, $value) {
        $_SESSION[$name] = $value;
    }

    public function remove($name) {
        unset($_SESSION[$name]);
    }
}