前面所提到的 ldelim 和 rdelim 是 smarty 的保留字，也是 smarty 的內定變數
保留的 {$smarty} 變數可以用來取得某些相當特殊的樣版變數，這些變數的說明如下：
Request variables
The request variables such as get, post, cookies, server, environment, and session variables can be accessed as demonstrated in the examples below:
要求變數如 get, post, cookies, server, environment 與 session 等變數取得方式如下：
Example 4-6. 展示所要求的變數
{* display value of page from URL (GET) http://www.example.com/index.php?page=foo *}
{$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}
Note: For historical reasons {$SCRIPT_NAME} can be accessed directly though {$smarty.server.SCRIPT_NAME} is the proposed way to access this value.
提醒： 因為使用習慣的原因，我們建議使用 {$smarty.server.SCRIPT_NAME} 變數取得 {$SCRIPT_NAME} 的值。
{$smarty.now}
The current timestamp can be accessed with {$smarty.now}. The number reflects the number of seconds passed since the so-called Epoch (January 1, 1970) and can be passed directly to date_format modifier for display purposes.
我們可以使用 {$smarty.now} 取得現在的時間戳記，得到的數字代表從1970 年1月1日開始到現在的秒數，我們可以將得到的數字傳給 date_format 修飾字。
Example 4-7. 使用 {$smarty.now}
{* use the date_format modifier to show current date and time *}
{$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"}
{$smarty.const}
You can access PHP constant values directly.
我們可以直接取得 PHP 常數變數。
Example 4-8. 使用 {$smarty.const}
{$smarty.const._MY_CONST_VAL}
{$smarty.capture}
The output captured via {capture}..{/capture} construct can be accessed using {$smarty} variable. See section on capture for an example.
由 {capture}..{/capture} 獲得的輸出變數可以使用 {$smarty} 取得，範例請參閱 capture。
{$smarty.config}
{$smarty} variable can be used to refer to loaded config variables. {$smarty.config.foo} is a synonym for {#foo#}. See the section on config_load for an example.
{$smarty} 變數可以用來參照到已載入的組態變數，如 {$smarty.config.foo} 同義於 {#foo#}，範例請參閱 config_load。
{$smarty.section}, {$smarty.foreach}
{$smarty} variable can be used to refer to 'section' and 'foreach' loop properties. See docs for section and foreach.
{$smarty} 變數可以用來參照到 'section' 與 'foreach' 等遞迴屬性，請參閱 section 與 foreach 文件。
{$smarty.template}
This variable contains the name of the current template being processed.
此參數內容為現在正在處理的樣版名稱。
{$smarty.version}
This variable contains the version of Smarty the template was compiled with.
此參數內容為 Smarty 的版本數字。
{$smarty.ldelim}
This variable is used for printing the left-delimiter value literally. See also {ldelim},{rdelim}.
此變數用來列印出左阻斷符號，請參閱 {ldelim},{rdelim}。
{$smarty.rdelim}
This variable is used for printing the right-delimiter value literally. See also {ldelim},{rdelim}.
此變數用來列印出右阻斷符號，請參閱 {ldelim},{rdelim}。
本篇所要討論的 ldelim 和 rdelim 使用法如下：
ldelim,rdelim
ldelim and rdelim are used for escaping template delimiters, in our case "{" or "}". You can also use {literal}{/literal} to escape blocks of text. See also {$smarty.ldelim} and {$smarty.rdelim}
ldelim 與 rdelim 是用來作為樣版阻斷符號脫序的，在我們的範例中是 "{" 或 "}"。你也可以使用 {literal}{/literal} 將區塊中的文字脫序。請參閱 {$smarty.ldelim} 與 {$smarty.rdelim}
Example 7-12. ldelim, rdelim
{* this will print literal delimiters out of the template *}
{ldelim}funcname{rdelim} is how functions look in Smarty!
The above example will output:
上面例子的輸出結果為：
{funcname} is how functions look in Smarty!
原文出處：
{$smarty} reserved variable
ldelim,rdelim
