EngineGP/system/library/cron/graph_servers_day.php

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

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

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

            while($server = $sql->get($servers))
            {
                if($server['date']+86400 > $start_point)
                    continue;

                $aGraph = array('online' => 0, 'cpu' => 0, 'ram' => 0, 'hdd' => 0, 'time' => 0);

                $sql->query('SELECT `online`, `cpu`, `ram`, `hdd` FROM `graph_hour` WHERE `server`="'.$server['id'].'" AND `time`>"'.($start_point-86400).'" ORDER BY `id` DESC LIMIT 24');

                $n = $sql->num();

                if(!$n)
                    continue;

                while($graph = $sql->get())
                {
                    $aGraph['online'] += $graph['online'];
                    $aGraph['cpu'] += $graph['cpu'];
                    $aGraph['ram'] += $graph['ram'];
                    $aGraph['hdd'] += $graph['hdd'];
                }

                $aGraph['online'] = $aGraph['online']/$n;
                $aGraph['cpu'] = $aGraph['cpu']/$n;
                $aGraph['ram'] = $aGraph['ram']/$n;
                $aGraph['hdd'] = $aGraph['hdd']/$n;

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

            return NULL;
        }
    }
?>