SW/panel_manager/panel_manager.php

<?php
    class Panel {
        public $state;
        public $login;
        
        function __construct($panel,$log){
            $this->state = $panel;
            $this->login = $log;
        }

        function showPanel() {
            if($this->login){
                switch($this->state) {
                    case 'us_u': require('user_unregistered_view.php'); break;
                    case 'us_r': require('user_registered_view.php'); break;
                    case 'rooms': require('manage_rooms.php');  break;
                    case 'sessions': require('manage_sessions.php'); break;
                    case 'edit_session': require('edit_sessions.php'); break;
                    default: require('hello_panel.php'); break;
                }
            }
            else{
                require('no_permisions_panel.php');
            }
        }
    }
?>