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分享求助大神看一眼这个代码
这个文件（u.php）打开后是一个登录页面，但是在代码里面我找不到任何关于页面格式设计的代码。作为初学者，看懂一个网站模板的代码实在是太难了，跪求大神帮助啊！
<?php
$__FILE__ = __FILE__;//当前文档的绝对路径
$LABEL_PAGE = 'member';
require_once dirname($__FILE__).'/inc/init.php';//加载一次文件
if(empty($core->CONFIG['site_open']) && !$IS_ADMIN){
//关闭网站,管理员放行
message($core->CONFIG['site_close_reason']);
}
//用户状态有异常
if(!empty($_P8SESSION['status']) && $_P8SESSION['status'] == 2){
message('member_locked');
}
//header('Pragma: no-cache');
//header('Cache-Control: no-cache, must-revalidate');
define('P8_MEMBER', true);//定义常量，大小写不敏感（true）
if(!$UID){
//if(P8_AJAX_REQUEST){
// exit('{}');
//}else{
if(HTTP_REFERER != $core->U_controller){
//如果不是请求/u.php, 设置登录后的跳转
$forward = HTTP_REFERER;
}
//更改当前URL路由到登录页面
$_SERVER['_REQUEST_URI'] = PHP_SELF .'/core/member-login';
//}
}
//获取URL路由
$router = $core->get_router();
$SYSTEM = $MODULE = $script = '';
$ACTION = 'index';
//默认动作index
$URL_PARAMS = array();
if(($count = count($router)) > 0){ //参数大于0
if($action_router = match_action($router[0])){
//匹配到是系统操作 system-action-...
$SYSTEM = $action_router[0];
$ACTION = $action_router[1];
$URL_PARAMS = array_slice($action_router, 2);
}else{
//匹配到是模块操作 system/module-action-...
$SYSTEM = $router[0];
if($count > 1 && $action_router = match_action($router[1])){
$MODULE = $action_router[0];
$ACTION = $action_router[1];
$URL_PARAMS = array_slice($action_router, 2);
}else{
$MODULE = empty($router[1]) ? '' : $router[1];
}
}
$ACTION = empty($ACTION) ? 'index' : basename($ACTION);
if($SYSTEM != 'core'){
if(isset($core->modules[$SYSTEM])){
//核心模块
$MODULE = $SYSTEM;
$SYSTEM = 'core';
}else if(empty($core->systems[$SYSTEM]['enabled'])){
message('no_such_system');
}
}
if($SYSTEM == 'core'){
//如果当前系统是核心
$this_system = &$core;
if($MODULE){
if(empty($core->modules[$MODULE]['enabled'])) message('no_such_module');
//核心模块 core/module-action-...
$this_module = &$core->load_module($MODULE);
$this_router = $this_module->U_controller;
$script_path = $this_module->path .'member/';
$this_controller = &$core->controller($this_module);
}else{
$this_router = $core->U_controller;
$script_path = $core->path .'member/';
}
$SKIN = $RESOURCE .'/skin/'. $core->CONFIG['member_template'] .'/'. $this_system->name .'/';
}else{
//其他系统
$this_system = &$core->load_system($SYSTEM);
if($MODULE){
if(empty($this_system->modules[$MODULE]['enabled'])) message('no_such_module');
//模块action system/module-action-...
$this_module = &$this_system->load_module($MODULE);
$this_router = $this_module->U_controller;
$script_path = $this_module->path .'member/';
$this_controller = &$core->controller($this_module);
}else{
//系统action system-action-...
$script_path = $this_system->path .'member/';
$this_router = $this_system->U_controller;
$this_controller = &$core->controller($this_system);
}
$SKIN = $RESOURCE .'/skin/'. $core->CONFIG['member_template'] .'/'. $this_system->name .'/';
}
if(isset($_GET['forward'])){
$forward = html_entities($_GET['forward']);
}else if(isset($forward)){
$forward = html_entities($forward);
}else{
$forward = $this_module->U_controller;
}
$this_url = $this_router .'-'. $ACTION;
$script = $script_path . $ACTION .'.php';
}else{
//没有任何动作,请求首页
$SYSTEM = 'core';
$this_system = &$core;
$this_module = &$core->load_module('member');
$this_controller = &$core->controller($this_module);
$script = $this_module->path .'member/index.php';
$this_url = $core->U_controller;
$SKIN = $RESOURCE .'/skin/'. $core->CONFIG['member_template'] .'/'. $this_system->name .'/';
}
defined('P8_SYSTEM') or define('P8_SYSTEM', $SYSTEM);
defined('P8_MODULE') or define('P8_MODULE', $MODULE);
defined('P8_ACTION') or define('P8_ACTION', $ACTION);
$MEMBERSKIN = $RESOURCE .'/skin/'. $core->CONFIG['member_template'];
//脚本不存在
is_file($script) or message('access_denied');
$LABEL_URL = xss_url($this_url .($URL_PARAMS ? '-'. implode('-', $URL_PARAMS) : '').'?'. $_SERVER['QUERY_STRING']);
if($UID && !get_cookie('USERNAME')){
set_cookie('USERNAME', jsonencode($USERNAME));
set_cookie('UID', $UID);
set_cookie('ROLE', $ROLE);
$IS_ADMIN && set_cookie('IS_ADMIN', $IS_ADMIN);
}
load_language($this_system, 'global');
if($MODULE) load_language($this_module, 'global');
//插件 插件数据 标签数据
$PLUGIN = $__plugin = $__label = array();
$TEMPLATE = $core->CONFIG['member_template'];
//gzip
if(function_exists('ob_gzhandler') && !empty($core->CONFIG['gzip'])) ob_start('ob_gzhandler');
if(isset($_GET['main_page']))$_GET['main_page'] = xss_url($_GET['main_page']);
//执行脚本
require $script;
/*
echo 'skin:'.$SKIN;
echo '<pre>';
echo 'script:'.$script.'<br>';
print_r(get_included_files());
echo '<br />';
echo 'Time: '. (get_timer() - $P8['start_time']) .'<br />';
echo 'Memory: '. (memory_usage() - $P8['memory_usage'])/1000 .' KB<br />';
echo 'Querys: '. $core->DB_master->query_num .'<br />';
echo 'UID:'. $UID .'<br />';
echo 'ROLE:'. $core->ROLE .'<br />';
echo 'ROLE_GROUP:'. $ROLE_GROUP .'<br />';
echo 'USERNAME:'. $USERNAME .'<br />';
echo '</pre>';
*/
?>
...全文
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