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学习Smarty3要点记录

PHPWebCSSHTMLUI 
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1.       在模板tpl中定义{2+3*4}，会计算成14；

2.       {$x + $y}必须紧挨着大括号，+之间有无空格关系不大；

3.       模板tpl中可定义{$str = strlen($hello)}，输出{$a}；{$a = strlen("$hello")}可以加引号，还可以加{}

4.       模板tpl中定义多维数组{assign var=foo value=array(1, array(3,4), 7)}，也可以{assign var=foo value=array[1, [3,4], 7]}，还可以{assign var=foo value=[0=>1, 1=>[3,4], 2=>7]}，调用方式{$foo[1][1]}，或者{$foo.1.1}，输出4；

5.       Smarty3模板tpl中支持动态的变量名{assign var=foo_3 value=[0=>1, 1=>[3,4], 2=>7, 8, 12, 79]}，执行{$foo_{$x}[1][1]}，输出4；

6.       支持对象链：

{$object->method1($x)->method2($y)}

在Php中定义如下：

class Test {

function f1()

    {

        echo "调用方法1.<br/>";

              return $this;

    }

    function f2()

    {

        echo "调用方法2.<br/>";

}

}

 

$t = new Test;

$smarty->assign("t", $t);

 

模板tpl中可以这样引用：

{$t->f1()->f2()}

 

7.       for语句：

{for $i=0; $i<$x; $i++}

hello, {$i}<br/>

{/for}

也可以

{for $i = 0 to 3 step 1}

hello, {$i}<br/>

{/for}

{for $i = 0 to 3}

hello, {$i@iteration}, {$i@total}, {$i@first}, {$i@last}<br/>

{/for}

{foreach $myarray as $var}...{/foreach}

{while $foo}...{/while}

 

8.       函数递归：

{function name=menu level=0}

  <ul class="level{$level}">

  {foreach $data as $entry}

    {if is_array($entry)}

      <li>{$entry@key}</li>

       {menu data=$entry level=$level+1}

    {else}

      <li>{$entry}</li>

    {/if}

  {/foreach}

  </ul>

{/function}

 

{$menu = ['item1','item2','item3' => ['item3-1','item3-2','item3-3' =>

['item3-3-1','item3-3-2']],'item4']}

 

{menu data=$menu}

 

  输出：

    * item1

    * item2

    * item3

          o item3-1

          o item3-2

          o item3-3

                + item3-3-1

                + item3-3-2

* item4

 

9.       代码块不缓存：

{nocache}...{/nocache}之间的代码永远不会缓存

 

10.   模板tpl中：

{$smarty.current_dir}输出模板当前目录

 

11.字符串直接用于smarty中：

 $smarty->display('string:This is my template, {$foo}!'); // php

{include file="string:This is my template, {$foo}!"} // template

均是直接显示出string来。

 

11.   限定变量存储：

$tpl = $smarty->createTemplate('index.tpl',$smarty);

或$tpl = $smarty->createTemplate('index.tpl')

$tpl->assign('hello',"hello world!");

 

//引用模板文件

$tpl->display('index.tpl');

 

12.   可以将在一个tpl中定义的变量的范围放大，以在其他的tpl文件中使用：

{assign var=foo value='bar'}           // no scope is specified, the default 'local'

{$foo='bar'}                        // same, local scope

{assign var=foo value='bar' scope='local'} // same, local scope

 

{assign var=foo value='bar' scope='parent'}

// Values will be available to the parent object

{$foo='bar' scope='parent'}       // (normally the calling template)

 

{assign var=foo value='bar' scope='root'} 

 // Values will be exported up to the root object, so they can

{$foo='bar' scope='root'}   // be seen from all templates using the same root.

 

{assign var=foo value='bar' scope='global'}

// Values will be exported to global variable storage,

{$foo='bar' scope='global'}    // they are available to any and all templates.

 

13.   模板继承：

parent.tpl:

<html>

  <head>

    <title>{block name='title'}My site name{/block}</title>

  </head>

  <body>

    <h1>{block name='page-title'}Default page title{/block}</h1>

    <div id="content">

      {block name='content'}

        Default content

      {/block}

    </div>

  </body>

</html>

 

child.tpl:

{extends file='parent.tpl'}

{block name='title'}

Child title

{/block}

 

grandchild.tpl:

{extends file='child.tpl'}

{block name='title'}Home - {$smarty.block.parent}{/block}

{block name='page-title'}My home{/block}

{block name='content'}

  {foreach $images as $img}

    <img src="{$img.url}" alt="{$img.description}" />

  {/foreach}

{/block}

 

We redefined all the blocks here, however in the title block we used {$smarty.block.parent},which tells Smarty to insert the default content from the parent template in its place.The content block was overriden to display the image files, and page-title has also be overriden to display a completely different title.

 

If we render grandchild.tpl we will get this:

<html>

  <head>

    <title>Home - Child title</title>

  </head>

  <body>

    <h1>My home</h1>

    <div id="content">

      <img src="/example.jpg" alt="image" />

      <img src="/example2.jpg" alt="image" />

      <img src="/example3.jpg" alt="image" />

    </div>

  </body>

</html>

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| Javascript玩转继承
评论
3 楼 vb2005xu 2010-06-02   
<?php $this->_extends('admin::@sys');?>
<?php $this->_block('contents');?>	

<?php $this->_element('menu-tips','admin::@sys'); ?>	
<table width="100%" align="center" border="0" cellspacing="0" cellpadding="0">
  <tr><td class="rightmainbody">
  <table width="100%" align="center" border="0" cellspacing="0" cellpadding="0">
    <tr class="tdbheader">
      <td colspan="2"><?php echo $current_menu['name']; ?></td>
    </tr>
    
	<?php $this->_block('main-body');$this->_endblock(); ?>
		
    <tr>
      <td class="tablebottom" colspan="2"></td>
    </tr>
    </table>
    </td>
  </tr>
</table>
<?php $this->_endblock(); ?>
2 楼 vb2005xu 2010-06-02  
顶级页面模板代码: 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Pragma" content="no-cache" />
<?php $this->_block('head'); ?>
	<meta name="keywords" content="" />
	<meta name="description" content="" />
<?php $this->_endblock(); ?>
<meta name="copyright" content="timeinchina" />
<meta name="author" content="iamsese,vb2005xu" />

<title><?php echo xser::translate('ui/admin/title');?>
<?php $this->_block('title');$this->_endblock(); ?></title>


<?php stylesheet_link_tag('admin/style'); $this->_block('css'); $this->_endblock(); ?>

<?php $this->_element('jsinclude','admin::dashboard'); 
	js_include_tag('admin/app.tic.sys');
	$this->_block('js'); $this->_endblock(); ?>
</head>
<body>
<a name="TOP" id="TOP"></a>

<?php $this->_element('topbar-menus','admin::default'); ?>
<?php $this->_element('navbar-menus','admin::default'); ?>

<div class="mainbody">
  <table border="0" cellspacing="0" cellpadding="0" style="width:100%;">
    <tr>
      <td valign="top" style="width:150px;">
      	<!-- left-menus -->
      	<?php $this->_element('left-menus','admin::default'); ?>
      </td>
      <td valign="top" style="width:20px;"></td>
      <td valign="top">
        <table width="100%" align="center" border="0" cellspacing="0" cellpadding="0">
        	<?php $this->_block('contents');$this->_endblock(); ?>          
        </table></td>
    </tr>
  </table>
</div>

<div class="copyright">
  <?php $this->_element('copyright','admin::default'); ?>
</div>

</body>
</html>
1 楼 vb2005xu 2010-06-02  
没感觉代码有什么更好的可读性,还不如php原生代码舒服,只要规定页面上不出现业务逻辑,其实代码也挺好看的,比如:
参见我写的 xser php framework 框架的视图引擎,支持模板继承 


<?php $this->_extends('admin::menu@sys');?>
<?php $this->_block('main-body');?>
	<!-- create menu -->
	<script>
	var menu_creater = null ;
	xu.ready(function(){
		menu_creater = new tic.sys.menu.Creater();
		menu_creater.init('fm_menu_create');
	});
	</script>
    
    <tr class="tablecell">
      <td valign="top">菜单类型:</td>
      <td>
      <?php
      	web_control('radioGroup','menu_type',array(
			'items'=>array(
      			' 顶部导航菜单 ' => 1 ,' 菜单组 ' => 2 ,' 菜单项 ' => 3 ,
      		) ,
		));		
      ?>      
      </td>
    </tr>
    
    <tr class="tablecell">
      <td colspan="2">
      <form action="<?php echo $save_url?>" method="POST" id="fm_menu_create">      
      	<div id='menuinfo'></div>
      </form>
      </td>
    </tr>
    
<?php $this->_endblock(); ?>



<table width="100%" align="center" border="0" cellspacing="0" cellpadding="0">
<?php web_control('hidden','menu[type]',array('value' => $menu['type']));?>
<?php
	$menu_options = array(
		'menu[name]' => array(
			'ctl'=>'textbox','text'=>'菜单名称',
			'params'=>array('size' => 35,'value'=>(isset($menu['name'])?$menu['name']:null),'class'=>"formfield"),
			'notice_caption' => ' (说明: 菜单的显示文本) *' ,
			'error_caption' => ''
		),
		'menu[udi]' => array(
			'ctl'=>'textbox','text'=>'UDI标识',
			'params'=>array('size' => 35,'value'=>(isset($menu['udi'])?$menu['udi']:null),'class'=>"formfield"),
			'notice_caption' => ' (格式: namespace::controller/action@module) *' ,
			'error_caption' => ''
		),
		'menu[displayorder]' => array(
			'ctl'=>'textbox','text'=>'显示次序',
			'params'=>array('size' => 35,'value'=>(isset($menu['displayorder'])?$menu['displayorder']:0),'class'=>"formfield",'maxLength'=>2),
			'notice_caption' => ' (格式: 小于16的整数,默认为0)' ,
			'error_caption' => ''
		),
	);
?>

<?php if (!empty($menu_options)): ?>

<?php foreach ($menu_options as $option=>$values) :?>
<tr class="tablecell">
   <td><?php echo htmlspecialchars("{$values['text']}: "); ?></td>	
   <td>
   <?php		
		web_control($values['ctl'],$option,$values['params']);
   		web_control('label',null,array('caption'=>$values['notice_caption'],'class'=>'yes'));
   		web_control('label',"{$option}_error",array('caption'=>$values['error_caption'],'class'=>'no')); 
   	?>
   </td>
</tr>	
<?php endforeach?>

<tr class="tablecell">
    <td colspan="2" align="center">
    <input type="submit" value="提交" class="formbutton">
    <input type="reset" value="重置" class="formbutton"></td>
</tr>

<?php endif; ?>
</table>
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