Usage analysis of Smarty template variable regulator, smarty regulator_PHP tutorial

Smarty template variable regulator usage analysis, smarty regulator

This article describes the usage of Smarty template variable regulator. Share it with everyone for your reference, 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. Separate parameters with ":", such as:

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

Variable mediation functions commonly used in Smarty templates

Member method name	Description
capitalize	Capitalize the first letter of all words in the variable, and the parameter value is determined by the boolean type Whether the first letter of words with numbers is capitalized, the default is not capitalized
count_characters	Calculate the number of characters in the variable value, and the parameter value boolean determines whether to count Count the number of spaces, spaces are not counted by default
cat	Connect the parameter value in cat to the given variable, the default is empty
count_paragraphs	Calculate the number of paragraphs in the variable
count_sentences	Count the number of sentences in the variable
count_words	Count the number of words in the variable
date_format	Date formatting, the first parameter controls the date format, if passed to date_format The data for is empty and the second parameter will be used as the default time
default	Set a default value for an empty variable. When the variable is empty or unassigned, Replace the output with the given default value
escape	Used for html transcoding, url transcoding, converting single quotes, on variables without transcoding Hex transcoding, hex beautification, or JavaScript transcoding. The default is html transcoding
indent	Indent the string on each line, the first parameter specifies how many characters to indent, defaults to four characters; the second parameter specifies what character to use for indentation instead of
lower	Lowercase the variable string
nl2br	All newline characters will be replaced with 076402276aae5dbec7f672f8f4e5cc81. The function is the same as the nl2br() function in PHP
regex_replace	To find and replace regular expressions, there must be two parameters. Parameter 1 is to replace Replace the regular expression, what text string should be used to replace parameter 2
replace	Simple search and replace string, must have two parameters, parameter 1 is The string to be replaced, parameter 2 is the text used to replace
spacify	Insert spaces or other strings between each character of the string., The parameter represents the string that will be inserted between two characters. The default is a space
string_format	is a way to format floating point numbers, such as decimal numbers, using sprintf Grammar formatting. The parameter is required and specifies the formatting method to be used. %d means displaying an integer, %.2f means intercepting two floating point numbers
strip	Replace all repeated spaces, newlines and tabs with a single or specified string. If there is a parameter, it is the specified string
strip_tags	Remove all html tags
truncate	Truncate a certain length of characters from the beginning of the string, the default is 80
upper	Change variables to uppercase

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]/":" <br/> "}>

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}>

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希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。

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