Smarty s02

保留变量  方便使用php

                   不用assign

                   {$smarty}

                   get

                            {$smarty.get.page}

                   session

                            {$smarty.session.user.name}

                   server

                   cookies

                   request

                   const(常量)

         变量调节器

                   escape(跟php中的htmlentities())

                            $smarty->assign('title','<h3>标题</h3>')

                            {$title}则直接输出 html的格式

                            {$title|escape}         转码

                            escape($title)

                   default

                   当没有的时候则是默认值

        

                   date_format

                            {$smarty.now|date_format:"Y-m-d H:i:s"}

                   truncate(截取长度)

                            {"标题标题"|truncate:8}

                   upper(转大写)

                            {"lamp"|upper}

                   strtoupper

                            {"lamp"|strtoupper}

                   {"="|str_repeat:40}        

                   php中的函数可以直接作为变量调节器使用

                   自定义函数也可以

         内置函数

                   foreach

                            {foreach $stulist as $stu}

                                     <tr>

                                               <td>{$stu@index+1}</td>

                                               <td>{$stu.name}</td>

                                     </tr>

                            {/foreach}        

                   if elseif else

                   while

                   include

                   for

                            (0-100的偶数)

                            {for $i=1 to 100 step 2}

                                      {i}

                            {/for}        

A.     Smarty配置

        

                   定义定界符(属性)

                            $left_delimiter[左定界符]

                            $right_delimiter[右定界符]

                           

                            $smarty->left_delimiter='<{';

                            $smarty->right_delimiter='}>';

                   定义模版目录

                            $template_dir[模板目录]

                            $smarty->template_dir='./view';//属性

                            $smarty->setTemplateDir('./view');//方法

                  

                   定义编译的目录

                            $smarty->setCompileDir('./view_c');

                            编译目录不存在则自己创建

                   缓存目录

                            $smarty->setCachrDir('./cache')     ;

                   配置文件的目录

                            $smarty->setConfigDir('./config');

B.     Smarty缓存

                   $smarty->conpile_check  [编译检查]

                   $smarty->conpile_compile  [强制编译]

                   1.开启缓存

                   $caching

                   $smarty->caching=1;      

                   接受参数

                   $id=intval($_GET['id'])l

                   //判断缓存是否有效,把文章ID作为缓存ID

                   //同一个模版,就可以有多个缓存文件

                   if(!smarty->isCached('article.tpl',$id)){

                            $data=array(

                                     2=>array('id'=>2,'title')

                            )

                   }

                   2.缓存时间

                   $smarty->cache_lifetime=50  //秒表 默认是3600      

                   3.//判断是否有缓存

                   if(!$smarty->isCached('1.tpl')){

                            //有可能是从数据库查询

                            //分配变量

                            $smarty->assign('title','标题')

                            //当前时间

                            $smarty->assign('now',date('Y-m-d H:i:s'));

                   }

                  

                   4.$smarty->display('article.tpl',$id)

                   不想缓存的地方

                   {nocache}

                            {$smarty.now|date_format}

                   {/nocache}

                   //清除某一个模版的缓存

                   $smarty->clearCache('article.tpl')

                   //清除某一个模版的ID的缓存

                   $smarty->clearCache('article.tpl',2)

                  

C.     Smarty插件

                   第一种方法

                   //将自定义函数注册为变量调节器

                   //第一个参数是插件的类型(9种)

                   //第二个参数是在Smarty中使用的名字

                   //第三个参数是我们自定义的函数名字

                   $smarty->registerPlugin('modifier','wanghaoyu',myfun)

                   第二种方法

                   //添加一个插件目录

                   //将特定命名的插件放到目录中

                   //规则:类型前缀.函数名.php(9中类型前缀)

                   $smarty->addPluginDir('./myPlugins')

                   自定义函数的 smarty_modifier_前缀不能改

D.     Smarty继承    extends

                   display('index.html')

                   在index代码中写上

                            {extends 'base.html'}

                            {block name='main'}

                                     <div>

                                               index的内容

                                     </div>

                            {/block}

                   在base.html想改的区域

                            {block name='main'}

                            {/block}

                   唯一能做的就是重写某一块

                   2.在block里面追加内容

                   {block name='top' append}

                            <div>haha</div>

                   {/block}

                   3.某个部分的背景变色,当内容变的时候同时变

                   {block name='top'}  

                            <div class='top'>

                                     {$smarty.block.parent}

                            </div>

                   {/block}    

                   4.title

                   模版

                   {block name='head'}

                            <head>

                                     <title>{$smarty.block.child}</title>

                            </head>  

                   {/block}    

                  

                   显示页

                   {block name='head'}文章{/block}

E.      Smarty 的include