The PHP reserved {$smarty} variable can be used to
access several environment and request variables.
The full list of them follows.
The request variables
such as $_GET, $_POST,
$_COOKIE, $_SERVER,
$_ENV and $_SESSION
can be accessed as demonstrated in the examples below:
Пример 4.8. Displaying request variables
{* display value of page from URL ($_GET) http://www.example.com/index.php?page=foo *}
{$smarty.get.page}
{* display the variable "page" from a form ($_POST['page']) *}
{$smarty.post.page}
{* display the value of the cookie "username" ($_COOKIE['username']) *}
{$smarty.cookies.username}
{* display the server variable "SERVER_NAME" ($_SERVER['SERVER_NAME'])*}
{$smarty.server.SERVER_NAME}
{* display the system environment variable "PATH" *}
{$smarty.env.PATH}
{* display the php session variable "id" ($_SESSION['id']) *}
{$smarty.session.id}
{* display the variable "username" from merged get/post/cookies/server/env *}
{$smarty.request.username}
Замечание
For historical reasons {$SCRIPT_NAME} is
short-hand for {$smarty.server.SCRIPT_NAME}.
<a href="{$SCRIPT_NAME}?page=smarty">click me</a>
<a href="{$smarty.server.SCRIPT_NAME}?page=smarty">click me</a>
Замечание
Although Smarty provides direct access to PHP super globals for convenience, it should be used with caution. Directly accessing super globals mixes underlying application code structure with templates. A good practice is to assign specific needed values to template vars.
The current timestamp
can be accessed with {$smarty.now}.
The value reflects the number of
seconds passed since the so-called Epoch on January 1, 1970,
and can be passed directly to the
date_format
modifier for display. Note that
time()
is called on each invocation; eg a script that takes three seconds to execute
with a call to $smarty.now at start and end
will show the three second difference.
{* use the date_format modifier to show current date and time *}
{$smarty.now|date_format:'%Y-%m-%d %H:%M:%S'}
You can access PHP constant values directly. See also smarty constants.
<?php
// the constant defined in php
define('MY_CONST_VAL','CHERRIES');
?>
Output the constant in a template with
{$smarty.const.MY_CONST_VAL}
Замечание
Although Smarty provides direct access to PHP constants for convenience, it is typically avoided as this is mixing underlying application code structure into the templates. A good practice is to assign specific needed values to template vars.
Template output captured via the built-in
{capture}..{/capture} function can be accessed
using the {$smarty.capture} variable.
See the
{capture} page for more information.
{$smarty.config} variable can be used to refer
to loaded config variables.
{$smarty.config.foo} is a synonym for
{#foo#}. See the
{config_load} page
for more info.
The {$smarty.section} variables can be used to refer to
{section}
loop properties. These have some very useful values such as
.first, .index, etc.
Замечание
The {$smarty.foreach} variable is no longer used with the new {foreach} syntax,
but is still supported with Smarty 2.x style foreach syntax.
Returns the name of the current template being processed (without the directory).
Returns the version of Smarty the template was compiled with.
<div id="footer">Powered by Smarty {$smarty.version}</div>
Returns block text from child template. See Template interitance.
Returns block text from parent template. See Template interitance
These variables are used for printing the left-delimiter and right-delimiter
value literally, the same as
{ldelim},{rdelim}.
See also assigned variables and config variables