How Smarty templates use variable regulators

This article mainly introduces the usage of Smarty template variable regulator, and analyzes the function and specific usage skills of Smarty template variable regulator in more detail. Friends in need can refer to it. I hope to be helpful.

The details are as follows:

How to modify text and variables in smarty? Of course, you can process the text through the PHP function, and then assign it to the template through the assign() method. In fact, smarty provides a variable regulator to easily process the text. The syntax is as follows:

{$ var|modifier1|modifier2|modifier3|…}

Note: 1. No matter how many functions are applied, they should be separated by |.

Note: 2. Parameters are used ":" separated, such as:

{$str|truncate:40:"..."}
//截取字符串长度为40，并以...结尾。

Variable mediation function commonly used in Smarty templates

php代码示例如下：

capitalize(首字母大写)：

<{$a|capitalize}>

count_characters(字符计数)：

<{$b|count_characters}>

cat(连接字符串)：

<{$c|cat:world}>

count_paragraphs(计算段数)----(换行符\n)：

<{$d|count_paragraphs}>

count_sentences(计算句数)：

<{$e|count_sentences}>

count_words(计算词数)：

<{$f|count_words}>

date_format(格式化日期)：

<{$smarty.now|date_format:"%y-%m-%d %H:%I:%S"}>

default(默认值)：

<{$biaoti|default:"no biaoti"}>

escape(编码)：

<{$dz|escape}>

indent(首行缩进)：

<{$in|indent}>
<{$in|indent:1:"\t"}>

nl2br换行符替换成：

<{$con|nl2br}>

regex_replace 正则替换

<{$h|regex_replace:"/[\r\t\n]/":" 
 "}>

replace(替换)

<{$h|replace:"hello":"你好"}>

提醒：

往往开发中有时候是满足不了需求的，那就可以直接写这些变量调节器，其实所谓的变量调节器就是一个函数，在这里我们自己建一个，首先在plugins文件夹里面间建立一个php文件，命名一定按着他的规范。

modifier.capita.php

function Smarty_modifier_capita($string){
//函数命名也是有规范的
 return strtoupper(substr($string,0,1)).strtolower(substr($string,1));
}

模版文件调用：

<{$a|capita}>

相关推荐：

php内置函数如何在smarty中调用的实例分享

Smarty分析保留变量的用法

Smarty模板引擎如何进行缓存的机制详解

The above is the detailed content of How Smarty templates use variable regulators. For more information, please follow other related articles on the PHP Chinese website!