uploadinstallincludesauto_init.php源码分析

  1 caching = true; 23 } 24 $ua = strtolower($_SERVER['HTTP_USER_AGENT']); 25  26 $uachar = "/(nokia|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|mobile)/i"; 27  28 if(($ua == '' || preg_match($uachar, $ua))&& !strpos(strtolower($_SERVER['REQUEST_URI']),'wap')) 29 { 30     $Loaction = 'mobile/'; 31  32     if (!empty($Loaction)) 33     { 34         ecs_header("Location: $Loaction\n"); 35  36         exit; 37     } 38  39 } 40 /*------------------------------------------------------ */ 41 //-- Shopex系统地址转换 42 /*------------------------------------------------------ */ 43 if (!empty($_GET['gOo'])) 44 { 45     if (!empty($_GET['gcat'])) 46     { 47         /* 商品分类。*/ 48         $Loaction = 'category.php?id=' . $_GET['gcat']; 49     } 50     elseif (!empty($_GET['acat'])) 51     { 52         /* 文章分类。*/ 53         $Loaction = 'article_cat.php?id=' . $_GET['acat']; 54     } 55     elseif (!empty($_GET['goodsid'])) 56     { 57         /* 商品详情。*/ 58         $Loaction = 'goods.php?id=' . $_GET['goodsid']; 59     } 60     elseif (!empty($_GET['articleid'])) 61     { 62         /* 文章详情。*/ 63         $Loaction = 'article.php?id=' . $_GET['articleid']; 64     } 65  66     if (!empty($Loaction)) 67     { 68         ecs_header("Location: $Loaction\n"); 69  70         exit; 71     } 72 } 73  74 //判断是否有ajax请求 75 $act = !empty($_GET['act']) ? $_GET['act'] : ''; 76 if ($act == 'cat_rec') 77 { 78     $rec_array = array(1 => 'best', 2 => 'new', 3 => 'hot'); 79     $rec_type = !empty($_REQUEST['rec_type']) ? intval($_REQUEST['rec_type']) : '1'; 80     $cat_id = !empty($_REQUEST['cid']) ? intval($_REQUEST['cid']) : '0'; 81     include_once('includes/cls_json.php'); 82     $json = new JSON; 83     $result   = array('error' => 0, 'content' => '', 'type' => $rec_type, 'cat_id' => $cat_id); 84  85     $children = get_children($cat_id); 86     $smarty->assign($rec_array[$rec_type] . '_goods',      get_category_recommend_goods($rec_array[$rec_type], $children));    // 推荐商品 87     $smarty->assign('cat_rec_sign', 1); 88     $result['content'] = $smarty->fetch('library/recommend_' . $rec_array[$rec_type] . '.lbi'); 89     die($json->encode($result)); 90 } 91  92 /*------------------------------------------------------ */ 93 //-- 判断是否存在缓存，如果存在则调用缓存，反之读取相应内容 94 /*------------------------------------------------------ */ 95 /* 缓存编号 */ 96 $cache_id = sprintf('%X', crc32($_SESSION['user_rank'] . '-' . $_CFG['lang'])); 97  98 if (!$smarty->is_cached('index.dwt', $cache_id)) 99 {100     assign_template();101 102     $position = assign_ur_here();103     $smarty->assign('page_title',      $position['title']);    // 页面标题104     $smarty->assign('ur_here',         $position['ur_here']);  // 当前位置105 106     /* meta information */107     $smarty->assign('keywords',        htmlspecialchars($_CFG['shop_keywords']));108     $smarty->assign('description',     htmlspecialchars($_CFG['shop_desc']));109     $smarty->assign('flash_theme',     $_CFG['flash_theme']);  // Flash轮播图片模板110 111     $smarty->assign('feed_url',        ($_CFG['rewrite'] == 1) ? 'feed.xml' : 'feed.php'); // RSS URL112 113     $smarty->assign('categories',      get_categories_tree()); // 分类树114     $smarty->assign('helps',           get_shop_help());       // 网店帮助115     $smarty->assign('top_goods',       get_top10());           // 销售排行116 117     $smarty->assign('best_goods',      get_recommend_goods('best'));    // 推荐商品118     $smarty->assign('new_goods',       get_recommend_goods('new'));     // 最新商品119     $smarty->assign('hot_goods',       get_recommend_goods('hot'));     // 热点文章120     $smarty->assign('promotion_goods', get_promote_goods()); // 特价商品121     $smarty->assign('brand_list',      get_brands());122     $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123 124     $smarty->assign('invoice_list',    index_get_invoice_query());  // 发货查询125     $smarty->assign('new_articles',    index_get_new_articles());   // 最新文章126     $smarty->assign('group_buy_goods', index_get_group_buy());      // 团购商品127     $smarty->assign('auction_list',    index_get_auction());        // 拍卖活动128     $smarty->assign('shop_notice',     $_CFG['shop_notice']);       // 商店公告129 130     /* 首页主广告设置 */131     $smarty->assign('index_ad',     $_CFG['index_ad']);132     if ($_CFG['index_ad'] == 'cus')133     {134         $sql = 'SELECT ad_type, content, url FROM ' . $ecs->table("ad_custom") . ' WHERE ad_status = 1';135         $ad = $db->getRow($sql, true);136         $smarty->assign('ad', $ad);137     }138 139     /* links */140     $links = index_get_links();141     $smarty->assign('img_links',       $links['img']);142     $smarty->assign('txt_links',       $links['txt']);143     $smarty->assign('data_dir',        DATA_DIR);       // 数据目录144 145     /* 首页推荐分类 */146     $cat_recommend_res = $db->getAll("SELECT c.cat_id, c.cat_name, cr.recommend_type FROM " . $ecs->table("cat_recommend") . " AS cr INNER JOIN " . $ecs->table("category") . " AS c ON cr.cat_id=c.cat_id");147     if (!empty($cat_recommend_res))148     {149         $cat_rec_array = array();150         foreach($cat_recommend_res as $cat_recommend_data)151         {152             $cat_rec[$cat_recommend_data['recommend_type']][] = array('cat_id' => $cat_recommend_data['cat_id'], 'cat_name' => $cat_recommend_data['cat_name']);153         }154         $smarty->assign('cat_rec', $cat_rec);155     }156 157     /* 页面中的动态内容 */158     assign_dynamic('index');159 }160 161 $smarty->display('index.dwt', $cache_id);162 163 /*------------------------------------------------------ */164 //-- PRIVATE FUNCTIONS165 /*------------------------------------------------------ */166 167 /**168  * 调用发货单查询169  *170  * @access  private171  * @return  array172  */173 function index_get_invoice_query()174 {175     $sql = 'SELECT o.order_sn, o.invoice_no, s.shipping_code FROM ' . $GLOBALS['ecs']->table('order_info') . ' AS o' .176             ' LEFT JOIN ' . $GLOBALS['ecs']->table('shipping') . ' AS s ON s.shipping_id = o.shipping_id' .177             " WHERE invoice_no > '' AND shipping_status = " . SS_SHIPPED .178             ' ORDER BY shipping_time DESC LIMIT 10';179     $all = $GLOBALS['db']->getAll($sql);180 181     foreach ($all AS $key => $row)182     {183         $plugin = ROOT_PATH . 'includes/modules/shipping/' . $row['shipping_code'] . '.php';184 185         if (file_exists($plugin))186         {187             include_once($plugin);188 189             $shipping = new $row['shipping_code'];190             $all[$key]['invoice_no'] = $shipping->query((string)$row['invoice_no']);191         }192     }193 194     clearstatcache();195 196     return $all;197 }198 199 /**200  * 获得最新的文章列表。201  *202  * @access  private203  * @return  array204  */205 function index_get_new_articles()206 {207     $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 ' .208             ' FROM ' . $GLOBALS['ecs']->table('article') . ' AS a, ' .209                 $GLOBALS['ecs']->table('article_cat') . ' AS ac' .210             ' WHERE a.is_open = 1 AND a.cat_id = ac.cat_id AND ac.cat_type = 1' .211             ' ORDER BY a.article_type DESC, a.add_time DESC LIMIT ' . $GLOBALS['_CFG']['article_number'];212     $res = $GLOBALS['db']->getAll($sql);213 214     $arr = array();215     foreach ($res AS $idx => $row)216     {217         $arr[$idx]['id']          = $row['article_id'];218         $arr[$idx]['title']       = $row['title'];219         $arr[$idx]['short_title'] = $GLOBALS['_CFG']['article_title_length'] > 0 ?220                                         sub_str($row['title'], $GLOBALS['_CFG']['article_title_length']) : $row['title'];221         $arr[$idx]['cat_name']    = $row['cat_name'];222         $arr[$idx]['add_time']    = local_date($GLOBALS['_CFG']['date_format'], $row['add_time']);223         $arr[$idx]['url']         = $row['open_type'] != 1 ?224                                         build_uri('article', array('aid' => $row['article_id']), $row['title']) : trim($row['file_url']);225         $arr[$idx]['cat_url']     = build_uri('article_cat', array('acid' => $row['cat_id']), $row['cat_name']);226     }227 228     return $arr;229 }230 231 /**232  * 获得最新的团购活动233  *234  * @access  private235  * @return  array236  */237 function index_get_group_buy()238 {239     $time = gmtime();240     $limit = get_library_number('group_buy', 'index');241 242     $group_buy_list = array();243     if ($limit > 0)244     {245         $sql = 'SELECT gb.act_id AS group_buy_id, gb.goods_id, gb.ext_info, gb.goods_name, g.goods_thumb, g.goods_img ' .246                 'FROM ' . $GLOBALS['ecs']->table('goods_activity') . ' AS gb, ' .247                     $GLOBALS['ecs']->table('goods') . ' AS g ' .248                 "WHERE gb.act_type = '" . GAT_GROUP_BUY . "' " .249                 "AND g.goods_id = gb.goods_id " .250                 "AND gb.start_time <= '" . $time . "' " .251                 "AND gb.end_time >= '" . $time . "' " .252                 "AND g.is_delete = 0 " .253                 "ORDER BY gb.act_id DESC " .254                 "LIMIT $limit" ;255         $res = $GLOBALS['db']->query($sql);256 257         while ($row = $GLOBALS['db']->fetchRow($res))258         {259             /* 如果缩略图为空，使用默认图片 */260             $row['goods_img'] = get_image_path($row['goods_id'], $row['goods_img']);261             $row['thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);262 263             /* 根据价格阶梯，计算最低价 */264             $ext_info = unserialize($row['ext_info']);265             $price_ladder = $ext_info['price_ladder'];266             if (!is_array($price_ladder) || empty($price_ladder))267             {268                 $row['last_price'] = price_format(0);269             }270             else271             {272                 foreach ($price_ladder AS $amount_price)273                 {274                     $price_ladder[$amount_price['amount']] = $amount_price['price'];275                 }276             }277             ksort($price_ladder);278             $row['last_price'] = price_format(end($price_ladder));279             $row['url'] = build_uri('group_buy', array('gbid' => $row['group_buy_id']));280             $row['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?281                                            sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];282             $row['short_style_name']   = add_style($row['short_name'],'');283             $group_buy_list[] = $row;284         }285     }286 287     return $group_buy_list;288 }289 290 /**291  * 取得拍卖活动列表292  * @return  array293  */294 function index_get_auction()295 {296     $now = gmtime();297     $limit = get_library_number('auction', 'index');298     $sql = "SELECT a.act_id, a.goods_id, a.goods_name, a.ext_info, g.goods_thumb ".299             "FROM " . $GLOBALS['ecs']->table('goods_activity') . " AS a," .300                       $GLOBALS['ecs']->table('goods') . " AS g" .301             " WHERE a.goods_id = g.goods_id" .302             " AND a.act_type = '" . GAT_AUCTION . "'" .303             " AND a.is_finished = 0" .304             " AND a.start_time <= '$now'" .305             " AND a.end_time >= '$now'" .306             " AND g.is_delete = 0" .307             " ORDER BY a.start_time DESC" .308             " LIMIT $limit";309     $res = $GLOBALS['db']->query($sql);310 311     $list = array();312     while ($row = $GLOBALS['db']->fetchRow($res))313     {314         $ext_info = unserialize($row['ext_info']);315         $arr = array_merge($row, $ext_info);316         $arr['formated_start_price'] = price_format($arr['start_price']);317         $arr['formated_end_price'] = price_format($arr['end_price']);318         $arr['thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);319         $arr['url'] = build_uri('auction', array('auid' => $arr['act_id']));320         $arr['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?321                                            sub_str($arr['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $arr['goods_name'];322         $arr['short_style_name']   = add_style($arr['short_name'],'');323         $list[] = $arr;324     }325 326     return $list;327 }328 329 /**330  * 获得所有的友情链接331  *332  * @access  private333  * @return  array334  */335 function index_get_links()336 {337     $sql = 'SELECT link_logo, link_name, link_url FROM ' . $GLOBALS['ecs']->table('friend_link') . ' ORDER BY show_order';338     $res = $GLOBALS['db']->getAll($sql);339 340     $links['img'] = $links['txt'] = array();341 342     foreach ($res AS $row)343     {344         if (!empty($row['link_logo']))345         {346             $links['img'][] = array('name' => $row['link_name'],347                                     'url'  => $row['link_url'],348                                     'logo' => $row['link_logo']);349         }350         else351         {352             $links['txt'][] = array('name' => $row['link_name'],353                                     'url'  => $row['link_url']);354         }355     }356 357     return $links;358 }359 360 ?>

调用结构层级

@ini_set('display_errors', 1);　　//设置显示错误

error_reporting(E_ALL ^ E_NOTICE);　　//报告所有的错误、通知，其中通知是脚本发现的可能是错误的地方

clearstatcache();　　//清除缓存

define('ROOT_PATH', str_replace('install/includes/auto_init.php', '', str_replace('\\', '/', __FILE__)));　　//定义常量'ROOT_PATH'为网站根目录upload/

if (isset($_SERVER['PHP_SELF']))　　//定义常量'PHP_SELF'为，$_SERVER['PHP_SELF']（当前执行脚本的文件名）或$_SERVER['SCRIPT_NAME']（当前执行脚本所在文件夹的路径）

{

define('PHP_SELF', $_SERVER['PHP_SELF']);

}

else

{

define('PHP_SELF', $_SERVER['SCRIPT_NAME']);

}

define('EC_CHARSET','utf-8');　　//定义常量'EC_CHARSET'和'EC_DB_CHARSET'为UTF8

define('EC_DB_CHARSET','utf8');

require(ROOT_PATH . 'includes/lib_base.php');　　//引用基础函数库，公用函数库，时间函数库，方便之后调用其中的函数

require(ROOT_PATH . 'includes/lib_common.php');

require(ROOT_PATH . 'includes/lib_time.php');

require(ROOT_PATH . 'includes/cls_error.php');　　//生成一个错误类对象，模板为message.dwt，此处并未导入dwt文件，只是给类成员对象$_template赋值

$err = new ecs_error('message.dwt');

require(ROOT_PATH . 'install/includes/cls_template.php');　　//生成一个模板类对象，并给类成员对象路径$path赋值

$smarty = new template(ROOT_PATH . 'install/templates/');

require(ROOT_PATH . 'install/includes/lib_auto_installer.php');　　//调用lib_auto_installer.php实际上什么也没做，lib_auto_installer.php提供了一系列库函数以供调用

header('Content-type: text/html; charset='.EC_CHARSET);　　//告诉浏览器文本类型，编码格式，其中EC_CHARSET在前面定义过，值为'utf-8'。

@set_time_limit(360);　　//设定脚本的最长执行时间为360秒，如果超过了时间限制，程序结束

总结一下：

这个php为自动安装程序做了初始化工作，包括生成一个错误类ecs_error对象（执行构造函数将公有成员变量$_template值设为‘message.dwt’），生成一个模板类template对象（执行构造函数将公有成员变量$path值设为'/upload/install/templates/'；告诉浏览器文本类型为text/html，编码格式utf8；设定脚本最长执行时间为360秒。

对于最后一条语句@set_time_limit(360)我有一些疑问想和大家分享一下。

set_time_limit函数实际上和修改php.ini中的max_execution_time可以起到一样的效果。这里说设定脚本最长执行时间为360秒，最初看到这条语句我陷入了一个误区：由于从顶层的index.php到这个php是一路require过来，并且在执行时require语句会被它所包含的文件直接替换，那么这个360秒到底是限制哪一个php的的执行时间。就在我百思不得其解时，看到了脚本这个词，然后忽然想到这个函数不是用来限制php文件的执行时间，php文件也不是脚本文件，这个函数是用来限制ecshop中用到的js之类脚本的执行时间，原谅我没文化，在此罗嗦了一大堆。