ecshop2.7.3的入口文件“index.php”的详细分析

//定义常量，防止被引用文件的非法载入

define('IN_ECS', true);

//加载全站初始化配置文件

require(dirname(__FILE__) . '/includes/init.php');

//自定义常量“DEBUG_MODE”与2进行按位与运算，如果"DEBUG_MODE"的二进制不是“10”，就打开缓存

if ((DEBUG_MODE & 2) != 2)

{

$smarty->caching = true;

}

//初定义变量$ua为“小写处理后的访问用户的所有信息”

$ua = strtolower($_SERVER['HTTP_USER_AGENT']);

//初定义变量$uachar为各种匹配机型

$uachar = "/(nokia|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|mobile)/i";

//如果‘wap’没有出现在经过小写化处理的url中，如果$ua为空或者$ua匹配到某种机型,同时满足上述两种情况，即手机登录时，定位到手机目录'mobile/'下

if(($ua == '' || preg_match($uachar, $ua))&& !strpos(strtolower($_SERVER['REQUEST_URI']),'wap'))

{

$Loaction = 'mobile/';

if (!empty($Loaction))

{

ecs_header("Location: $Loaction\n");

exit;

}

}

//Shopex系统地址转换,一些功能定位

if (!empty($_GET['gOo']))

{

if (!empty($_GET['gcat']))

{

/* 商品分类。*/

$Loaction = 'category.php?id=' . $_GET['gcat'];

}

elseif (!empty($_GET['acat']))

{

/* 文章分类。*/

$Loaction = 'article_cat.php?id=' . $_GET['acat'];

}

elseif (!empty($_GET['goodsid']))

{

/* 商品详情。*/

$Loaction = 'goods.php?id=' . $_GET['goodsid'];

}

elseif (!empty($_GET['articleid']))

{

/* 文章详情。*/

$Loaction = 'article.php?id=' . $_GET['articleid'];

}

if (!empty($Loaction))

{

ecs_header("Location: $Loaction\n");

exit;

}

}

//判断是否有ajax请求,若有$smarty模版实例化对象，输出内容，并退出当前脚本

$act = !empty($_GET['act']) ? $_GET['act'] : '';

if ($act == 'cat_rec')

{

$rec_array = array(1 => 'best', 2 => 'new', 3 => 'hot');

$rec_type = !empty($_REQUEST['rec_type']) ? intval($_REQUEST['rec_type']) : '1';

$cat_id = !empty($_REQUEST['cid']) ? intval($_REQUEST['cid']) : '0';

include_once('includes/cls_json.php');

$json = new JSON;

$result  = array('error' => 0, 'content' => '', 'type' => $rec_type, 'cat_id' => $cat_id);

$children = get_children($cat_id);

$smarty->assign($rec_array[$rec_type] . '_goods',      get_category_recommend_goods($rec_array[$rec_type], $children));    // 推荐商品

$smarty->assign('cat_rec_sign', 1);

$result['content'] = $smarty->fetch('library/recommend_' . $rec_array[$rec_type] . '.lbi');

die($json->encode($result));

}

//格式化并缓存编号

$cache_id = sprintf('%X', crc32($_SESSION['user_rank'] . '-' . $_CFG['lang']));

//smarty模板引擎检查'index.dwt'模板是否已经被缓存

if (!$smarty->is_cached('index.dwt', $cache_id))

{

//调用模板参数

assign_template();

//“assign_ur_here()”来自“lib_main.php”的129行，主要用来获取当前页面的title和路径的函数

$position = assign_ur_here();

//下面是通过缓存获取内容实例化

$smarty->assign('page_title',      $position['title']);    // 页面标题

$smarty->assign('ur_here',        $position['ur_here']);  // 当前位置

/* meta information */

$smarty->assign('keywords',        htmlspecialchars($_CFG['shop_keywords']));

$smarty->assign('description',    htmlspecialchars($_CFG['shop_desc']));

$smarty->assign('flash_theme',    $_CFG['flash_theme']);  // Flash轮播图片模板

$smarty->assign('feed_url',        ($_CFG['rewrite'] == 1) ? 'feed.xml' : 'feed.php'); // RSS URL

$smarty->assign('categories',      get_categories_tree()); // 分类树

$smarty->assign('helps',          get_shop_help());      // 网店帮助

$smarty->assign('top_goods',      get_top10());          // 销售排行

$smarty->assign('best_goods',      get_recommend_goods('best'));    // 推荐商品

$smarty->assign('new_goods',      get_recommend_goods('new'));    // 最新商品

$smarty->assign('hot_goods',      get_recommend_goods('hot'));    // 热点文章

$smarty->assign('promotion_goods', get_promote_goods()); // 特价商品

$smarty->assign('brand_list',      get_brands());

$smarty->assign('promotion_info',  get_promotion_info()); // 增加一个动态显示所有促销信息的标签栏

$smarty->assign('invoice_list',    index_get_invoice_query());  // 发货查询

$smarty->assign('new_articles',    index_get_new_articles());  // 最新文章

$smarty->assign('group_buy_goods', index_get_group_buy());      // 团购商品

$smarty->assign('auction_list',    index_get_auction());        // 拍卖活动

$smarty->assign('shop_notice',    $_CFG['shop_notice']);      // 商店公告

/*jdy add 0816 添加首页幻灯插件*/

$smarty->assign("flash",get_flash_xml());

$smarty->assign('flash_count',count(get_flash_xml()));

/* 首页主广告设置 */

$smarty->assign('index_ad',    $_CFG['index_ad']);

if ($_CFG['index_ad'] == 'cus')

{

$sql = 'SELECT ad_type, content, url FROM ' . $ecs->table("ad_custom") . ' WHERE ad_status = 1';

$ad = $db->getRow($sql, true);

$smarty->assign('ad', $ad);

}

/* links */

$links = index_get_links();

$smarty->assign('img_links',      $links['img']);

$smarty->assign('txt_links',      $links['txt']);

$smarty->assign('data_dir',        DATA_DIR);      // 数据目录

/* 首页推荐分类 */

$cat_recommend_res = $db->getAll("SELECT c.cat_id, c.cat_name, cr.recommend_type FROM " . $ecs->table("cat_recommend") . " AS cr INNER JOIN " . $ecs->table("category") . " AS c ON cr.cat_id=c.cat_id");

if (!empty($cat_recommend_res))

{

$cat_rec_array = array();

foreach($cat_recommend_res as $cat_recommend_data)

{

$cat_rec[$cat_recommend_data['recommend_type']][] = array('cat_id' => $cat_recommend_data['cat_id'], 'cat_name' => $cat_recommend_data['cat_name']);

}

$smarty->assign('cat_rec', $cat_rec);

}

/* 页面中的动态内容 */

assign_dynamic('index');

}

//显示模版"index.dwt"

$smarty->display('index.dwt', $cache_id);

//调用发货单查询,mysql数据库操作

function index_get_invoice_query()

{

$sql = 'SELECT o.order_sn, o.invoice_no, s.shipping_code FROM ' . $GLOBALS['ecs']->table('order_info') . ' AS o' .

' LEFT JOIN ' . $GLOBALS['ecs']->table('shipping') . ' AS s ON s.shipping_id = o.shipping_id' .

" WHERE invoice_no > '' AND shipping_status = " . SS_SHIPPED .

' ORDER BY shipping_time DESC LIMIT 10';

$all = $GLOBALS['db']->getAll($sql);

foreach ($all AS $key => $row)

{

$plugin = ROOT_PATH . 'includes/modules/shipping/' . $row['shipping_code'] . '.php';

if (file_exists($plugin))

{

include_once($plugin);

$shipping = new $row['shipping_code'];

$all[$key]['invoice_no'] = $shipping->query((string)$row['invoice_no']);

}

}

//函数清除文件状态缓存

clearstatcache();

return $all;

}

//获得最新的文章列表，mysql数据库操作

function index_get_new_articles()

{

$sql = 'SELECT a.article_id, a.title, ac.cat_name, a.add_time, a.file_url, a.open_type, ac.cat_id, ac.cat_name ' .

' FROM ' . $GLOBALS['ecs']->table('article') . ' AS a, ' .

$GLOBALS['ecs']->table('article_cat') . ' AS ac' .

' WHERE a.is_open = 1 AND a.cat_id = ac.cat_id AND ac.cat_type = 1' .

' ORDER BY a.article_type DESC, a.add_time DESC LIMIT ' . $GLOBALS['_CFG']['article_number'];

$res = $GLOBALS['db']->getAll($sql);

$arr = array();

foreach ($res AS $idx => $row)

{

$arr[$idx]['id']          = $row['article_id'];

$arr[$idx]['title']      = $row['title'];

$arr[$idx]['short_title'] = $GLOBALS['_CFG']['article_title_length'] > 0 ?

sub_str($row['title'], $GLOBALS['_CFG']['article_title_length']) : $row['title'];

$arr[$idx]['cat_name']    = $row['cat_name'];

$arr[$idx]['add_time']    = local_date($GLOBALS['_CFG']['date_format'], $row['add_time']);

$arr[$idx]['url']        = $row['open_type'] != 1 ?

build_uri('article', array('aid' => $row['article_id']), $row['title']) : trim($row['file_url']);

$arr[$idx]['cat_url']    = build_uri('article_cat', array('acid' => $row['cat_id']), $row['cat_name']);

}

return $arr;

}

//获得最新的团购活动

function index_get_group_buy()

{

$time = gmtime();

$limit = get_library_number('group_buy', 'index');

$group_buy_list = array();

if ($limit > 0)

{

$sql = 'SELECT gb.act_id AS group_buy_id, gb.goods_id, gb.ext_info, gb.goods_name, g.goods_thumb, g.goods_img ' .

'FROM ' . $GLOBALS['ecs']->table('goods_activity') . ' AS gb, ' .

$GLOBALS['ecs']->table('goods') . ' AS g ' .

"WHERE gb.act_type = '" . GAT_GROUP_BUY . "' " .

"AND g.goods_id = gb.goods_id " .

"AND gb.start_time <= '" . $time . "' " .

"AND gb.end_time >= '" . $time . "' " .

"AND g.is_delete = 0 " .

"ORDER BY gb.act_id DESC " .

"LIMIT $limit" ;

$res = $GLOBALS['db']->query($sql);

while ($row = $GLOBALS['db']->fetchRow($res))

{

/* 如果缩略图为空，使用默认图片 */

$row['goods_img'] = get_image_path($row['goods_id'], $row['goods_img']);

$row['thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);

/* 根据价格阶梯，计算最低价 */

$ext_info = unserialize($row['ext_info']);

$price_ladder = $ext_info['price_ladder'];

if (!is_array($price_ladder) || empty($price_ladder))

{

$row['last_price'] = price_format(0);

}

else

{

foreach ($price_ladder AS $amount_price)

{

$price_ladder[$amount_price['amount']] = $amount_price['price'];

}

}

ksort($price_ladder);

$row['last_price'] = price_format(end($price_ladder));

$row['url'] = build_uri('group_buy', array('gbid' => $row['group_buy_id']));

$row['short_name']  = $GLOBALS['_CFG']['goods_name_length'] > 0 ?

sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];

$row['short_style_name']  = add_style($row['short_name'],'');

$group_buy_list[] = $row;

}

}

return $group_buy_list;

}

//取得拍卖活动列表

function index_get_auction()

{

$now = gmtime();

$limit = get_library_number('auction', 'index');

$sql = "SELECT a.act_id, a.goods_id, a.goods_name, a.ext_info, g.goods_thumb ".

"FROM " . $GLOBALS['ecs']->table('goods_activity') . " AS a," .

$GLOBALS['ecs']->table('goods') . " AS g" .

" WHERE a.goods_id = g.goods_id" .

" AND a.act_type = '" . GAT_AUCTION . "'" .

" AND a.is_finished = 0" .

" AND a.start_time <= '$now'" .

" AND a.end_time >= '$now'" .

" AND g.is_delete = 0" .

" ORDER BY a.start_time DESC" .

" LIMIT $limit";

$res = $GLOBALS['db']->query($sql);

$list = array();

while ($row = $GLOBALS['db']->fetchRow($res))

{

$ext_info = unserialize($row['ext_info']);

$arr = array_merge($row, $ext_info);

$arr['formated_start_price'] = price_format($arr['start_price']);

$arr['formated_end_price'] = price_format($arr['end_price']);

$arr['thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);

$arr['url'] = build_uri('auction', array('auid' => $arr['act_id']));

$arr['short_name']  = $GLOBALS['_CFG']['goods_name_length'] > 0 ?

sub_str($arr['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $arr['goods_name'];

$arr['short_style_name']  = add_style($arr['short_name'],'');

$list[] = $arr;

}

return $list;

}

//获得所有的友情链接

function index_get_links()

{

$sql = 'SELECT link_logo, link_name, link_url FROM ' . $GLOBALS['ecs']->table('friend_link') . ' ORDER BY show_order';

$res = $GLOBALS['db']->getAll($sql);

$links['img'] = $links['txt'] = array();

foreach ($res AS $row)

{

if (!empty($row['link_logo']))

{

$links['img'][] = array('name' => $row['link_name'],

'url'  => $row['link_url'],

'logo' => $row['link_logo']);

}

else

{

$links['txt'][] = array('name' => $row['link_name'],

'url'  => $row['link_url']);

}

}

return $links;

}

//解析'/flash_data.xml',控制[首页]头滚动图片效果

*通过首页广告设置

function get_flash_xml()

{

$flashdb = array();

if (file_exists(ROOT_PATH . DATA_DIR . '/flash_data.xml'))

{

// 兼容v2.7.0及以前版本

if (!preg_match_all('/item_url="([^"]+)"\slink="([^"]+)"\stext="([^"]*)"\ssort="([^"]*)"/', file_get_contents(ROOT_PATH . DATA_DIR . '/flash_data.xml'), $t, PREG_SET_ORDER))

{

preg_match_all('/item_url="([^"]+)"\slink="([^"]+)"\stext="([^"]*)"/', file_get_contents(ROOT_PATH . DATA_DIR . '/flash_data.xml'), $t, PREG_SET_ORDER);

}

if (!empty($t))

{

foreach ($t as $key => $val)

{

$val[4] = isset($val[4]) ? $val[4] : 0;

$flashdb[] = array('src'=>$val[1],'url'=>$val[2],'text'=>$val[3],'sort'=>$val[4]);

//print_r($flashdb);

}

}

}

return $flashdb;

}