Methods of using get, post, request, cookies, and session variables in smarty templates

This article mainly introduces the methods of using get, post, request, cookies, and session variables in smarty templates. Friends in need can refer to it

{$smarty} retained variables do not need to be retrieved from PHP scripts Assignment is an array type variable that can be accessed directly in the template. It is usually used to access some special template variables. For example, directly access page request variables in the template, obtain the timestamp when accessing the template, directly access constants in PHP, read variables from the configuration file, etc.

1. Access the page request variables in the template

We can obtain the data submitted to the server in different ways on the client through the super global array $_GET, $_POST, $_REQUEST in the PHP script, or through $_COOKIE Or use $_SESSION to track variables between multiple scripts, or get system environment variables through $_ENV and $_SERVER. If these arrays are needed in the template, you can call the assign() method in the Smarty object to assign them to the template. But in Smarty templates, you can directly access these page request variables through {$smarty} reserved variables. An example used in the template is as follows:

PHP code

1. {$smarty.get.page} {* PHP方式：$_GET["page"] *}

2. {$smarty.post.page} {* PHP方式：$_POST["page"] *}

3. {$smarty.cookies.username} {* PHP方式：$_COOKIE["username"] *}

4. {$smarty.session.id} {* PHP方式：$_SESSION["id"] *}

5. {$smarty.server.SERVER_NAME} {* PHP方式：$_SERVER["SERVER_NAME"] *}

6. {$smarty.env.PATH} {* PHP方式：$_ENV["PATH"]*}

7. {$smarty.request.username} {* PHP方式：$_REQUEST["username"] *}

2. Access variables in PHP in templates

There are two types of system constants and custom constants in PHP scripts. These two constants can also be accessed in Smarty templates, and there is no need to access them from PHP In allocation, as long as the variable is retained through {$smarty}, the value of the constant can be output directly. An example of outputting constants in a template is as follows:

1、 {$smarty.const._MY_CONST_VAL} {* 输出PHP脚本中自定义的常量 *}   
2、 {$smarty.const.__FILE__} {* 通过保留变量数组直接输出系统常量 *}

3. Others

1.{$smarty.now} variable is used to access the current timestamp

can be used date_format regulator formatted output. For example {$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"}

2.{$smarty.const}

You can access PHP constants directly. For example, {$smarty.const._MY_CONST_VAL}

3.{$smarty.capture}

can be accessed through {capture}..{/ The output captured by the capture} structure can be accessed using the {$smarty} variable.
##4.{$smarty.config}

The {$smarty} variable can access the loaded config variable

For example, {$smarty.config.foo} can represent {#foo#}

5.{$smarty.section}, {$smarty.foreach}

{$smarty } Variables can access properties of 'section' and 'foreach' loops

6.{$smarty.template} Displays the name of the currently processed template

7.{$smarty.version}

Display the smarty template version

8.{$smarty.ldelim} Display the left delimiter

9.{$smarty.rdelim} Display the right delimiter

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