zuitu 最土团购源码分析（一）前台部分

无可厚非PHP还是普及度最高，最简单的语言。

想快速开发系统还是用PHP比较好。

初学PHP，那就以现在最火的团购网站源码最土来做分析学习。

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最土网站?http://www.zuitu.com/

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开发工具

dreamwear

xampp

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前台分析

我们首先来看首页index.php的源码

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<?phprequire_once(dirname(__FILE__) . '/app.php');if(!$INI['db']['host']) redirect( WEB_ROOT . '/install.php' );if($city&&option_yes('rewritecity')){redirect(WEB_ROOT."/{$city['ename']}");}$request_uri = 'index';$team = $teams = index_get_team($city['id']);if ($team && $team['id']) {$_GET['id'] = abs(intval($team['id']));die(require_once( dirname(__FILE__) . '/team.php'));}elseif ($teams) {$disable_multi = true;die(require_once( dirname(__FILE__) . '/multi.php'));}include template('subscribe');

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我勒个去，找不到HTML标签。难道HTML用模版实现的？

算了，先从第一句看吧，谁叫我是菜鸟呢。

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require_once(dirname(__FILE__) . '/app.php');

直接google，过程省略。

http://php.net/manual/zh/function.require-once.php

意思就是只引用一次app.php。 app.php应该是MVC框架的控制器。

我们再看看app.php里写了什么。

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<?phprequire_once(dirname(__FILE__). '/include/application.php');/* magic_quota_gpc */$_GET = magic_gpc($_GET);$_POST = magic_gpc($_POST);$_COOKIE = magic_gpc($_COOKIE);/* process currefer*/$currefer = uencode(strval($_SERVER['REQUEST_URI']));/* session,cache,configure,webroot register */Session::Init();$INI = ZSystem::GetINI();/* end *//* date_zone */if(function_exists('date_default_timezone_set')) { date_default_timezone_set($INI['system']['timezone']); }/* end date_zone *//* biz logic */$currency = $INI['system']['currency'];$login_user_id = ZLogin::GetLoginId();$login_user = Table::Fetch('user', $login_user_id);$hotcities = option_hotcategory('city', false, true);$allcities = option_category('city', false, true);$city = cookie_city(null);/* not allow access app.php */if($_SERVER['SCRIPT_FILENAME']==__FILE__){redirect( WEB_ROOT . '/index.php');}/* end */$AJAX = ('XMLHttpRequest' == @$_SERVER['HTTP_X_REQUESTED_WITH']);if (false==$AJAX) { header('Content-Type: text/html; charset=UTF-8'); run_cron();} else {header("Cache-Control: no-store, no-cache, must-revalidate");}

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马勒隔壁，这么多。看得头晕，还是先把index.php看完再看下面一层吧。不然就是无限循环啊。。。切记，切记。

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<?phprequire_once(dirname(__FILE__) . '/app.php');/*只加载一次app.php*/if(!$INI['db']['host']) redirect( WEB_ROOT . '/install.php' );/* $INI中是否存在['db']['host'],$INI在app.php中加载 */if($city&&option_yes('rewritecity')){ /* 如果有city变量并且XXX就直接跳转到根目录所有的省链接 */redirect(WEB_ROOT."/{$city['ename']}");}$request_uri = 'index';$team = $teams = index_get_team($city['id']); /* index_get_team函数在include/function/common.php里 */if ($team && $team['id']) {$_GET['id'] = abs(intval($team['id'])); /* 字符串转整数并取绝对值，为什么要这样做？ */die(require_once( dirname(__FILE__) . '/team.php')); /* 加载team.php 并终止*/}elseif ($teams) {$disable_multi = true;die(require_once( dirname(__FILE__) . '/multi.php')); }include template('subscribe'); /* 加载模版subscribe, subscribe是什么？ */

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待解决疑问 ?

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/* session,cache,configure,webroot register */Session::Init();$INI = ZSystem::GetINI();/* end */

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include/function/common.php

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function index_get_team($city_id) {global $INI;$multi = option_yes('indexmulti');if (!$multi) return current_team($city_id);$city_id = abs(intval($city_id));$now = time();$size = abs(intval($INI['system']['sideteam']));if ($size<=1) return current_team($city_id);$oc = array( 'city_id' => array($city_id, 0), 'team_type' => 'normal',"begin_time < '{$now}'","end_time > '{$now}'",);$teams = DB::LimitQuery('team', array('condition' => $oc,'order' => 'ORDER BY `sort_order` DESC, `id` DESC','size' => $size,));if(count($teams) == 1) return array_pop($teams);return $teams;}

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