Reserved variable usage analysis in PHP template engine smarty, template smarty_php Tutorial

Reserved variable usage analysis in PHP template engine smarty, template Smarty

This example describes the usage of reserved variables in the PHP template engine smarty. Share to everyone for your reference, as follows:

In Smarty, there are reserved variables that are not required to be allocated by the PHP script and can be used directly, i.e. without using $_tpl->assign (' var ', ' value ') to allocate.

1. Accessing the page request variables 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. Accessing 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 define defined constants in PHP scripts

3. Get the current server time in the template file

Copy the code as follows: {$smarty. Now|date_format: "%y-%m-%d%h:%m:%s"} = = date in php script (' y-m-d h:i:s ', Time ())

4. configuration file access in the template

You can access the template variables in the configuration file by {$smarty. config. Configuration variable}. In this case, there are two ways to access the variables in the configuration file in the template: one, {#配置变量 #}, two, {$smarty. config, config variable}, if there is a region.

5. Get data captured by Smarty built-in function capture

The function of the capture function is to capture data from the template output and store it in a variable instead of outputting it to the page, and any data between {capture Name= "foo"} and {/capture} will be stored in the variable $foo, which is specified by the Name property. The variable is accessed by the $smarty. Capture.foo in the template, and if the Name property is not specified, the function defaults to use "default" as the parameter.

6. $smarty of reserved variables. foreach

$smarty. Foreach gets some information about the Foreach Loop array, such as the number of arrays, incrementing by +1 ..., about the use of $smarty. Foreach, refer to the previous article PHP template engine Smarty Built-in function foreach, Analysis of Foreachelse usage

More about PHP related content readers can view the topic: "Smarty Template Primer Basic Tutorial", "PHP Template Technology Summary", "PHP based on PDO Operation Database Skills summary", "PHP operation and operator Usage Summary", "PHP Network Programming Skills Summary", " PHP Basic Grammar Introductory tutorial, PHP Object-oriented Programming primer, PHP string usage Summary, PHP+MYSQL database Operations Primer and PHP Common database operations Tips Summary

It is hoped that this article will be helpful to everyone based on smarty template PHP program design.

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