smarty学习——变量

变量的处理对于模板来说是比较重要的。

Smarty有几种不同类型的变量. 变量 的类型取决于它的前缀是什么符号(或者被什么符号包围)

Smarty的变量可以直接被输出或者作为函数属性和修饰符(modifiers)的参数,

或者用于内部的条件表达式等等. 如果要输出一个变量,只要用定界符将它括起来就可以。

{$Name}

{$Contacts[row].Phone}

<body bgcolor="{#bgcolor#}">

一.php分配的变量

调用从PHP分配的变量需在前加"$"符号。

调用模板内的assign函数分配的变量也是这样。

比如前面我们的代码

<?php
require_once 'smartyUser.php';
$usermodel=new smartyUser();
$usermodel->assign('name','dalong');
$usermodel->display('user.tpl');
?>

{*smarty demo tempalates *}
hello ,{$name}!!!
{if $name=="dalong"}
you are the first one!!!
{else}
you are the last one
{/if}

使用$name 进行访问即可。

1.关联数组

测试代码如下:

<?php
require_once 'smartyUser.php';
$usermodel=new smartyUser();
$usermodel->assign('name','dalong');
$usermodel->assign('userinfo',array('username'=>'dalong','userage'=>20));
$usermodel->display('user.tpl');
?>

模板文件:

{*smarty demo tempalates *}
hello ,{$name}!!!
<br>
username,{$userinfo.username}
<br>
userage,{$userinfo.userage}
<br>
{if $name=="dalong"}
you are the first one!!!
{else}
you are the last one
{/if}

显示结果:

2.索引数组

<?php
require_once 'smartyUser.php';
$usermodel=new smartyUser();
$usermodel->assign('name','dalong');
$usermodel->assign('userinfo',array('username'=>'dalong','userage'=>20));
$usermodel->assign('namelist',array('dalong','lisi','zhangsan'));
$usermodel->display('user.tpl');
?>

模板文件:

{*smarty demo tempalates *}
hello ,{$name}!!!
<br>
username,{$userinfo.username}
<br>
userage,{$userinfo.userage}
<br>
firstname:{$namelist[0]}
<br>
{if $name=="dalong"}
you are the first one!!!
{else}
you are the last one
{/if}

测试结果:

3.对象

进行测试使用的简单对象

<?php
class user
{
 var $username;
 var $userage;
}
?>

<?php
require_once 'smartyUser.php';
require_once 'user.php';
$usermodel=new smartyUser();
$usermodel->assign('name','dalong');
$usermodel->assign('userinfo',array('username'=>'dalong','userage'=>20));
$user=new user();
$user->userage=555;
$user->username='dalong';
$usermodel->assign('userobject',$user);
$usermodel->assign('namelist',array('dalong','lisi','zhangsan'));
$usermodel->display('user.tpl');
?>

模板文件使用:

{*smarty demo tempalates *}
hello ,{$name}!!!
<br>
username,{$userinfo.username}
<br>
userage,{$userinfo.userage}
<br>
firstname:{$namelist[0]}
<br>
userobject demo info
<br>
userage={$userobject->userage}
<br>
username={$userobject->username}
<br>
{if $name=="dalong"}
you are the first one!!!
{else}
you are the last one
{/if}

测试结果:

二.配置文件信息;

配置文件中的变量需要通过用两个"#"或者是smarty的保留变量 $smarty.config.来调用(下节将讲到)

第二种语法在变量作为属性值并被引号括住的时候非常有用.

(举个例子

{include file="#includefile#"}

 这样#includefile#将被当作字符处理,而不表示配置文件变量,

但可以这样表示

{include file="`$smarty.config.includefile`"}

不要忘了加``)

测试代码如下:

userinfo.conf:

userinfoname="dalong"
userinfoage=33333

conf.tpl:

{config_load file="userinfo.conf"}
use #
<br>
username={#userinfoname#}
<br>
userage={#userinfoage#}
<br>
use ***$smarty.config****
<br>
username:{$smarty.config.userinfoname}
<br>
userage:{$smarty.config.userinfoage}

php :

<?php
require_once 'smartyUser.php';
require_once 'user.php';
$usermodel=new smartyUser();
$usermodel->assign('name','dalong');
$usermodel->assign('userinfo',array('username'=>'dalong','userage'=>20));
$user=new user();
$user->userage=555;
$user->username='dalong';
$usermodel->assign('userobject',$user);
$usermodel->assign('namelist',array('dalong','lisi','zhangsan'));
$usermodel->display('conf.tpl');
?>

三.

{$smarty}

保留变量

{$smarty}

保留变量可以被用于访问一些特殊的模板变量.

以下是全部列表:

1.request 变量

 $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV and $_SESSION等

{* display value of page from URL (GET) http://www.domain.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}

2.$smarty.now

{* use the date_format modifier to show current date and time *}

{$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"}

3.$smart.const

{$smarty.const._MY_CONST_VAL}

4.$smarty.capture

5.$smarty.config

6.$smarty.section

7.$smarty.foreach

8.$smarty.template
原文地址:https://www.cnblogs.com/rongfengliang/p/3524807.html