EngineGP/system/library/cron/graph_servers_hour.php

<?php
    if(!DEFINED('EGP'))
        exit(header('Refresh: 0; URL=http://'.$_SERVER['SERVER_NAME'].'/404'));

    class graph_servers_hour extends cron
    {
        function __construct()
        {
            global $sql, $start_point;

            $servers = $sql->query('SELECT `id`, `online`, `ram_use`, `cpu_use`, `hdd_use`, `date` FROM `servers` ORDER BY `id` ASC');

            while($server = $sql->get($servers))
            {
                if($server['date']+3600 > $start_point)
                    continue;

                $sql->query('INSERT INTO `graph_hour` set `server`="'.$server['id'].'",'
                        .'`online`="'.$server['online'].'",'
                        .'`cpu`="'.$server['cpu_use'].'",'
                        .'`ram`="'.$server['ram_use'].'",'
                        .'`hdd`="'.$server['hdd_use'].'", `time`="'.$start_point.'"');
            }

            return NULL;
        }
    }
?>