<?php
代碼首先包含common.inc.php文件
在common.inc.php文件中，首先定義常量。
define('IN_DESTOON', true);
define('IN_ADMIN', defined('DT_ADMIN') ? true : false);
define('DT_ROOT', str_replace("\", '/', dirname(__FILE__)));
if(defined('DT_REWRITE')) include  DT_ROOT.'/include/rewrite.inc.php';//是否定義了url偽靜態？
$CFG = array();//網站整體配置信息
require DT_ROOT.'/config.inc.php';//-----------------網站配置文件
define('DT_PATH', $CFG['url']);
define('DT_DOMAIN', $CFG['cookie_domain'] ? substr($CFG['cookie_domain'],  1) : '');
define('DT_WIN', strpos(strtoupper(PHP_OS), 'WIN') !== false ? true:  false);
define('DT_CHMOD', ($CFG['file_mod'] && !DT_WIN) ? $CFG['file_mod']  : 0);
define('DT_URL', $CFG['url']);//Fox 3.x
define('DT_LANG', $CFG['language']);
define('DT_KEY', $CFG['authkey']);
define('DT_CHARSET', $CFG['charset']);
define('DT_CACHE', $CFG['cache_dir'] ? $CFG['cache_dir'] :  DT_ROOT.'/file/cache');
define('DT_SKIN', DT_PATH.'skin/'.$CFG['skin'].'/');
define('SKIN_PATH', DT_PATH.'skin/'.$CFG['skin'].'/');//For 2.x
define('VIP', $CFG['com_vip']);
define('errmsg', 'Invalid Request');
隨后加載網站基本功能
$L = array();
include DT_ROOT.'/lang/'.DT_LANG.'/lang.inc.php';//語言信息
require DT_ROOT.'/version.inc.php';
require DT_ROOT.'/include/global.func.php';//--------全局函數
require DT_ROOT.'/include/tag.func.php';//-----------標簽函數
require DT_ROOT.'/api/im.func.php';//----------------聊天工具
require DT_ROOT.'/api/extend.func.php';//------------自己寫的擴展函數
if(!$MQG && $_POST) $_POST = daddslashes($_POST);
if(!$MQG && $_GET) $_GET = daddslashes($_GET);
if(function_exists('date_default_timezone_set'))  date_default_timezone_set($CFG['timezone']);
$DT_PRE = $CFG['tb_pre'];
$DT_QST = $_SERVER['QUERY_STRING'];//----------------querystring
$DT_TIME = time() + $CFG['timediff'];//--------------當前時間
$DT_IP = get_env('ip');
$DT_URL = get_env('url');
$DT_REF = get_env('referer');
$DT_BOT = is_robot();
鏈接數據庫，建立緩存。
header("Content-Type:text/html;charset=".DT_CHARSET);
require DT_ROOT.'/include/db_'.$CFG['database'].'.class.php';//加載數據庫類
require  DT_ROOT.'/include/cache_'.$CFG['cache'].'.class.php';//加載緩存類
if($_POST) extract($_POST, EXTR_SKIP);//解析post請求的數據
if($_GET) extract($_GET, EXTR_SKIP);//解析get請求的數據
$db_class = 'db_'.$CFG['database'];
$db = new $db_class;
$db->halt = (DT_DEBUG || IN_ADMIN) ? 1 : 0;
$db->pre = $CFG['tb_pre'];
$db->connect($CFG['db_host'], $CFG['db_user'], $CFG['db_pass'],  $CFG['db_name'], $CFG['db_expires'], $CFG['db_charset'],  $CFG['pconnect']);
$dc = new dcache();
$dc->pre = $CFG['cache_pre'];
加載模塊的基本配置
$DT = $MOD = $EXT = $CSS = $DTMP = $CAT = $ARE = $AREA = array();
$CACHE = cache_read('module.php');
if(!$CACHE) {
//沒有緩存模塊，就讀取緩存模塊。
require_once DT_ROOT.'/admin/global.func.php';
require_once DT_ROOT.'/include/post.func.php';
require_once DT_ROOT.'/include/cache.func.php';
cache_all();
$CACHE = cache_read('module.php');
}
$DT = $CACHE['dt'];
$MODULE = $CACHE['module'];
$EXT = cache_read('module-3.php');
加載模塊，讀取模塊信息，引入模塊文件
if(!isset($moduleid)) {
$moduleid = 1;
$module = 'destoon';
} else if($moduleid == 1) {
$module = 'destoon';
} else {
$moduleid = intval($moduleid);
isset($MODULE[$moduleid]) or dheader(DT_PATH);
$module = $MODULE[$moduleid]['module'];
$MOD = $moduleid == 3 ? $EXT :  cache_read('module-'.$moduleid.'.php');
include DT_ROOT.'/lang/'.DT_LANG.'/'.$module.'.inc.php';
}
$forward = isset($forward) ? urldecode($forward) :  $DT_REF;//------------來源頁面
$action = isset($action) ? trim($action) :  '';//-------------動作指令
//判斷用戶登錄
$destoon_auth = get_cookie('auth');
if($destoon_auth) {
$_dauth = explode("t", decrypt($destoon_auth,  md5(DT_KEY.$_SERVER['HTTP_USER_AGENT'])));
//print_r($_dauth);SELECT userid,username,groupid,admin FROM  destoon_member
$_userid = isset($_dauth[0]) ? intval($_dauth[0]) : 0;
$_username = isset($_dauth[1]) ? trim($_dauth[1]) : '';
$_groupid = isset($_dauth[2]) ? intval($_dauth[2]) : 3;
$_admin = isset($_dauth[4]) ? intval($_dauth[4]) : 0;
if($_userid && !defined('DT_NONUSER')) {
$_password = isset($_dauth[3]) ? trim($_dauth[3]) : '';
$user = $db->get_one("SELECT  username,passport,company,truename,password,groupid,email,message,chat,sound,online,sms,credit,money,loginip,admin,aid,edittime,trade  FROM {$DT_PRE}member WHERE userid=$_userid");
if($user && $user['password'] == $_password) {
if($user['groupid'] == 2)  dalert(lang('message->common_forbidden'));//禁止用戶訪問的組別
extract($user, EXTR_PREFIX_ALL, '');
if($user['loginip'] != $DT_IP && ($DT['ip_login'] == 2 ||  ($DT['ip_login'] == 1 && IN_ADMIN))) {
//單點登錄，判斷ip
$_userid = 0; set_cookie('auth', '');
dalert(lang('message->common_login', array($user['loginip'])),  DT_PATH);
}
} else {
//登錄失敗
$_userid = 0;
if($db->linked && !isset($swfupload) &&  strpos($_SERVER['HTTP_USER_AGENT'], 'Flash') === false) set_cookie('auth',  '');
}
unset($destoon_auth, $user, $_dauth, $_password);
}
}
if($_userid == 0) { $_groupid = 3; $_username = ''; }
if(!IN_ADMIN) {
if($_groupid == 1) include DT_ROOT.'/module/member/admin.inc.php';
if($_userid && !defined('DT_NONUSER')) {
$db->query("REPLACE INTO {$DT_PRE}online  (userid,username,ip,moduleid,online,lasttime) VALUES  ('$_userid','$_username','$DT_IP','$moduleid','$_online','$DT_TIME')");
} 
else {
if(timetodate($DT_TIME, 'i') == 10) {
$lastime = $DT_TIME - $DT['online'];
$db->query("DELETE FROM {$DT_PRE}online WHERE  lasttime<$lastime");
}
}
}
$MG = cache_read('group-'.$_groupid.'.php');//讀取用戶組別配置
$_areaids = '';
$_areaid = array();
if($DT['city']) {
$AREA or $AREA = cache_read('area.php');
if($_aid) {
$_areaids = $AREA[$_aid]['child'] ? $AREA[$_aid]['arrchildid'] :  $_aid;
$_areaid = explode(',', $_areaids);
}
} else {
$_aid < 1 or dalert('系統未開啟分站功能，您的分站管理帳號暫不可用',  $MODULE[2]['linkurl'].'logout.php');
}
$session = new dsession();
require DT_ROOT.'/admin/global.func.php';
require DT_ROOT.'/include/post.func.php';
require_once DT_ROOT.'/include/cache.func.php';
isset($file) or $file = 'index';
$secretkey = 'admin_'.strtolower(substr($CFG['authkey'], -6));
//echo $secretkey;exit;
if($DT['authadmin'] == 'session') {
$_destoon_admin = isset($_SESSION[$secretkey]) ?  intval($_SESSION[$secretkey]) : 0;
} else {
$_destoon_admin = get_cookie($secretkey);
$_destoon_admin = $_destoon_admin ? intval($_destoon_admin) : 0;
}
$_founder = $CFG['founderid'] == $_userid ? $_userid : 0;
$_catids = $_childs = '';
$_catid = $_child = array();
if($file != 'login') {
if($_groupid != 1 || $_admin < 1 || !$_destoon_admin) msg('',  '?file=login&forward='.urlencode($DT_URL));
//判斷用戶是否已經登錄？如果未登錄，直接跳轉到登錄頁面。防止用戶構造url。
if(!admin_check()) {
admin_log(1);
$db->query("DELETE FROM { $db->pre}admin WHERE userid=$_userid AND  url='?".$DT_QST."'");
msg('警告！您無權進行此操作 Error(00)');
}
}
//是否記錄日志
if($DT['admin_log'] && $action != 'import') admin_log();
if($DT['admin_online']) admin_online();
$psize = isset($psize) ? intval($psize) : 0;
if($psize > 0 && $psize != $pagesize) {
$pagesize = $psize;
$offset = ($page-1)*$pagesize;
}
if($module == 'destoon') {
(include DT_ROOT.'/admin/'.$file.'.inc.php') or msg();
} else {
echo $file.'|'.$module;
include DT_ROOT.'/module/'.$module.'/common.inc.php';//加載模塊下的common文件
(include MD_ROOT.'/admin/'.$file.'.inc.php') or msg();//加載模塊文件
}