Using Smarty in PHP Part 3: Reserved variables in Smarty_PHP tutorial

In Smarty, there are some reserved variables that can be used directly without the need for PHP scripts to assign them, that is, there is no need to use $_tpl->assign('var','value') to assign them.

​ ​ 1. Access the variables requested by the page in the template

{$smarty.get.user} == $_GET['user']

{$smarty.post.user} == $_POST['user']

{$smarty.cookie.username} == $_COOKIE['username']

{$smarty.session.username} == $_SESSION['username']

{$smarty.server.REMOTE_ADDR} == $_SERVER["REMOTE_ADDR"]

{$smarty.env.PATH} == $_ENV['PATH']

{$smarty.request.username} == $_REQUEST['username']

​ ​ 2. Access the constants and system constants defined in the PHP script in the template file

{$smarty.const.__FILE__} currently executing PHP file

{$smarty.const.CONST_VAR} Access constants defined by define in PHP scripts

3. Get the current server time in the template file

{$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"} == date('Y-m-d H:i:s',time()) in PHP script

​ ​ 4. Access to configuration files in templates

Template variables in the configuration file can be accessed through {$smarty.config.Configuration Variables}. In this case, there are two ways to access the variables in the configuration file in the template: 1. {#Configuration Variables#}; 2. {$smarty.config.Configuration Variables}, if there is a zone, the same is true.

​ ​ 5. Get the data captured by Smarty’s built-in function capture

The function of the capture function is to capture the data output by the template and store it in a variable instead of outputting them to the page. Any data between {capture name="foo"} and {/capture} will be stored in In the variable $foo, the variable is specified by the name attribute. Access this variable through $smarty.capture.foo in the template. If the name attribute is not specified, the function will use "default" as the parameter by default