Customized min version of smarty template engine MinSmarty.class.php file and usage, smarty template engine

Customized min version of smarty template engine MinSmarty.class.php file and usage, smarty template engine_PHP tutorial

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Jul 12, 2016 am 08:50 AM

smartytemplate enginecustomize

自定义min版smarty模板引擎MinSmarty.class.php文件及用法，smarty模板引擎

本文实例讲述了自定义的min版smarty模板引擎MinSmarty.class.php文件。分享给大家供大家参考，具体如下：

一、smarty的优点

smarty是一个使用PHP写出来的模板引擎，是目前业界最著名的PHP模板引擎之一。它分离了逻辑代码和外在的内容，提供了一种易于管理和使用的方法，用来将原本与HTML代码混杂在一起PHP代码逻辑分离。简单的讲，目的就是要使PHP程序员同前端人员分离，使程序员改变程序的逻辑内容不会影响到前端人员的页面设计，前端人员重新修改页面不会影响到程序的程序逻辑，这在多人合作的项目中显的尤为重要。

二、写一个简单的smarty模版类

具体代码如下：

<&#63;php
 class MinSmarty{
 // 模版文件的路径
 var $template_dir = "./templates/";
 // 模版文件被替换后的文件 命名格式为com_对应的tpl.php
 var $complie_dir = "./templates_c/";
 // 存放变量值
 var $tpl_vars = array();
 // 这里使用两个方法实现assign 和 display
 function assign($tpl_var,$var=NULL){
  if($tpl_var!=NULL){
  $this->tpl_vars[$tpl_var]=$var;
  }
 }
 // 这里编写display方法的实现
 function display($tpl_file){
  // 读取这个模版文件->替换可以运行的php文件(编译后文件)
  $tpl_file_path=$this->template_dir.$tpl_file;  // 模版文件的路径
  $complie_file_path=$this->complie_dir."com_".$tpl_file.".php";  //编译后的文件路径
  // 判断文件是否存在
  if(!file_exists($tpl_file_path)){
  return false;
  }
  // 不让每次执行都生成编译文件
  if(!file_exists($complie_file_path) || filemtime($tpl_file_path)>filemtime($complie_file_path)){
  $fp1_file_con=file_get_contents($tpl_file_path); // 获取模版文件的全部内容
  // 这里进行正则替换把  模版文件中的代码 {$title} 替换成 <&#63;php echo $this->tpl_vars['title'];&#63; >
  $pattern=array(
     '/\{\s*\$([a-zA-Z_][a-zA-Z0-9_]*)\s*\}/i'
  );
  $replace=array(
     '<&#63;php echo $this->tpl_vars["${1}"];&#63;>'
  );
  $new_str=preg_replace($pattern,$replace,$fp1_file_con);  // 替换后的内容
  file_put_contents($complie_file_path,$new_str);  // 替换后的内容生成一个php文件
  }
  // 引入编译后的文件
  include_once("$complie_file_path");
 }
 }
&#63;>

下面的代码是对该类的测试

intro.php代码如下：

<&#63;php
  include_once("MySmarty.class.php");
  $title="这里是标题";
  $content="这里是内容111111";
  $MySmarty=new MySmarty();
  $MySmarty->assign("title",$title);
  $MySmarty->assign("content",$content);
  $MySmarty->display("intro.tpl");
&#63;>

模版如下：

intro.tpl：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>{$title}</title>
</head>
<body>
{$content}
</body>
</html>

PS：这里推荐几款本站的格式化/美化/转换工具可以帮助你整理杂乱无章的代码，相信大家在以后的开发中能够用得上：

php代码在线格式化美化工具：
http://tools.jb51.net/code/phpformat

JavaScript代码美化/压缩/格式化/加密工具：
http://tools.jb51.net/code/jscompress

在线XML格式化/压缩工具：
http://tools.jb51.net/code/xmlformat

JSON代码格式化美化工具：
http://tools.jb51.net/code/json

在线XML/JSON互相转换工具：
http://tools.jb51.net/code/xmljson

json代码在线格式化/美化/压缩/编辑/转换工具：
http://tools.jb51.net/code/jsoncodeformat

sql代码在线格式化美化工具：
http://tools.jb51.net/code/sqlcodeformat

更多关于Smarty相关内容感兴趣的读者可查看本站专题：《smarty模板入门基础教程》、《PHP模板技术总结》、《PHP基于pdo操作数据库技巧总结》、《PHP运算与运算符用法总结》、《PHP网络编程技巧总结》、《PHP基本语法入门教程》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

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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