Smarty有几种不同类型的变量.
变量 的类型取决于它的前缀是什么符号(或者被什么符号包围)
Smarty的变量可以直接被输出或者作为函数属性和修饰符（modifiers）的参数,或者用于内部的条件表达式等等.
如果要输出一个变量,只要用定界符将它括起来就可以.例如:
{$Name}
{$Contacts[row].Phone}
<body bgcolor="{#bgcolor#}">1、从配置文件读取的变量
配置文件中的变量需要通过用两个"#"或者是smarty的保留变量 $smarty.config.来调用（下节将讲到）
第二种语法在变量作为属性值并被引号括住的时候非常有用.
（译注：举个例子 {include file="#includefile#"} 这样#includefile#将被当作字符处理，而不表示配置文件变量，
但可以这样表示 {include file="`$smarty.config.includefile`"}不要忘了加``）
例：
foo.conf:
pageTitle = "This is mine"
bodyBgColor = "#eeeeee"
tableBorderSize = "3"
tableBgColor = "#bbbbbb"
rowBgColor = "#cccccc"
index.tpl:
{config_load file="foo.conf"}
<html>
<title>{#pageTitle#}</title>
<body bgcolor="{#bodyBgColor#}">
<table border="{#tableBorderSize#}" bgcolor="{#tableBgColor#}">
<tr bgcolor="{#rowBgColor#}">
<td>First</td>
<td>Last</td>
<td>Address</td>
</tr>
</table>
</body>
</html>
index.tpl: (alternate syntax)
{config_load file="foo.conf"}
<html>
<title>{$smarty.config.pageTitle}</title>
<body bgcolor="{$smarty.config.bodyBgColor}">
<table border="{$smarty.config.tableBorderSize}" bgcolor="{$smarty.config.tableBgColor}">
<tr bgcolor="{$smarty.config.rowBgColor}">
<td>First</td>
<td>Last</td>
<td>Address</td>
</tr>
</table>
</body>
</html>
输出结果： (same for both examples)
<html>
<title>This is mine</title>
<body bgcolor="#eeeeee">
<table border="3" bgcolor="#bbbbbb">
<tr bgcolor="#cccccc">
<td>First</td>
<td>Last</td>
<td>Address</td>
</tr>
</table>
</body>
</html>配置文件的变量只有在它们被加载以后才能使用.
这个过程将在以后 {config_load} . 的章节里说明.2、{$smarty}保留变量
{* display value of page from URL (GET) http://www.domain.com/index.php?page=foo *}
{$smarty.get.page}
{* display the variable "page" from a form (POST) *}
{$smarty.post.page}
{* display the value of the cookie "username" *}
{$smarty.cookies.username}
{* display the server variable "SERVER_NAME" *}
{$smarty.server.SERVER_NAME}
{* display the system environment variable "PATH" *}
{$smarty.env.PATH}
{* display the php session variable "id" *}
{$smarty.session.id}
{* display the variable "username" from merged get/post/cookies/server/env *}
{$smarty.request.username}{$smarty.const._MY_CONST_VAL}The output captured via {capture}..{/capture} construct can be accessed using {$smarty} variable. See section on capture for an example.
{$smarty} variable can be used to refer to loaded config variables. {$smarty.config.foo} is a synonym for {#foo#}. See the section on config_load for an example.
{$smarty} variable can be used to refer to 'section' and 'foreach' loop properties. See docs for section and foreach.
This variable contains the name of the current template being processed.
{$smarty}保留变量可以被用于访问一些特殊的模板变量.
index.php:
$smarty = new Smarty;
$smarty->assign('Contacts',
array('fax' => '555-222-9876',
'email' => 'zaphod@slartibartfast.com',
'phone' => array('home' => '555-444-3333',
'cell' => '555-111-1234')));
$smarty->display('index.tpl');
index.tpl:
{$Contacts.fax}<br>
{$Contacts.email}<br>
{* you can print arrays of arrays as well *}
{$Contacts.phone.home}<br>
{$Contacts.phone.cell}<br>
输出结果：
555-222-9876<br>
zaphod@slartibartfast.com<br>
555-444-3333<br>
555-111-1234<br>Array indexes数据下标
index.php: $smarty = new Smarty; $smarty->assign('Contacts', array('555-222-9876', 'zaphod@slartibartfast.com', array('555-444-3333', '555-111-1234'))); $smarty->display('index.tpl'); index.tpl: {$Contacts[0]}<br> {$Contacts[1]}<br> {* you can print arrays of arrays as well *} {$Contacts[2][0]}<br> {$Contacts[2][1]}<br> 输出结果： 555-222-9876<br> zaphod@slartibartfast.com<br> 555-444-3333<br> 555-111-1234<br>Objects对象
name: {$person->name}<br> email: {$person->email}<br> 输出结果： name: Zaphod Beeblebrox<br> email: zaphod@slartibartfast.com<br>
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