浅析ThinkPHP的模板输出功能_PHP
ThinkPHP
ThinkPHP中的每一个xxxAction.class.php文件就代表着一个应用模块，这个Action中的每一个方法(function)代表着一个操作，操作可以分为有输出到模板的操作和只具执行不需要输出的操作。
打开Myapp/Lib/Action/IndexAction.class.php文件，我们可以看到里面的基础代码：
class IndexAction extends Action{
public function index(){
}
}
对此，需要指出一下几点：
1.在ThinkPHP的开发中，要增加一个应用模块，就要在Action文件夹里建立一个类，类的文件命名格式是“模块名称+Action.class.php”。例如我们这里的应用模块是Index，所以定义文件名为IndexAction.class.php。
2.应用模块类的定义要继承框架的Action类。要为这个应用模块添加一个操作，则定义一个以此操作为命名的function.例如上面的index操作。
通常一个应用模块中，会有若干操作(function)需要有与用户交互的页面，这就需要用到模板输出，ThinkPHP本身已内置了一套具有ThinkPHP特色的，很强大易扩展但应用非常方便兼简单的模板引擎。
在应有模块中，如果某个操作是需要页面显示的，只要对应在Myapp/Tpl/default/里建立一个文件夹，文件夹以应用模块的名称来命名，然后在这个文件夹下，建立一个以这个function名称来命名的html文件，就可以在这个方法中使用$this->display()方法来直接调用该模板。（当然也可以调用其它模块下的其它模板或显式指定模板文件位置和名称，由于是循序渐进式的学习，就让我们先忽略吧）了解这些理论后，我们先简单实操一下这些知识。
(1)在Myapp/Tpl/default/下建立一个文件夹，根据应用模块的名称，我们将这个文件夹命名为Index
(2)在Myapp/Tpl/default/Index/下建立一个html文件，根据操作名称，我们命名该文件为index.html
(3)打开Myapp/Lib/Action/IndexAction.class.php文件，修改代码为
<?php
class IndexAction extends Action{
public function index(){
$value = 'hello,ThinkPHP';
$this->assign('name',$value);
$this->display();
}
}
?>
(摘自手册：ThinkPHP模板指南，此后的知识要点均来自ThinkPHP官方手册，不再申明)
在Action类里面使用 assign方法对模板变量赋值，无论何种变量类型都统一使用assign赋值。
$this->assign('name',$value);// 下面的写法是等效的
$this->name = $value ;
// 模板变量赋值后就需要调用模板文件来输出相关的变量，模板调用通过display方法来实现
$this->display();
4 打开Myapp/Tpl/default/Index/index.html文件,代码为
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>{$name}</title>
</head>
<body>
测试输出： {$name}
</body>
</html>
此处注意：模板变量使用{$变量名称}这种标签进行输出。
不同的模板变量类型，使用不同的标签，标签可以自行另外定义，暂且不理会。
5 打开浏览器输入地址:
附加补充知识：
1 如果要同时输出多个模板变量，可以使用下面的方式：
$array = array(); $array['name'] = 'thinkphp'; $array['email'] = '123456@vip.qq.com'; $array['phone'] = '123456'; $this->assign($array);
这样，就可以在模板文件中同时输出name、email和phone三个变量。
2 我们使用上面的变量定义，将整个数组定义为一个模板变量来输出
$array = array();
$array['name'] = 'thinkphp';
$array['email'] = '123456@vip.qq.com';
$array['phone'] = '123456';
$this->assign('array',$array);
$this->display();
在html中，要输出$array['name']的值，代码是
{$array.name} 或 {$array['name']}
3 将这个数组循环输出
(1) IndexAction.class.php中代码更改如下
<?php
class IndexAction extends Action{
public function index(){
$array = array();
$array['name'] = 'thinkphp';
$array['email'] = '123456@vip.qq.com;
$array['phone'] = '123456';
$value = 'hello,ThinkPHP';
$this->assign('array',$array);
$this->assign('name',$value);
$this->display();
}
}
?>
(2) 将Myapp/Tpl/default/Index/index.html代码更改如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>{$name}</title>
</head>
<body>
<iterate name="array" id="vo">
{$vo}<br />
</iterate>
</body>
</html>
注意：name='array'是指要循环的模板变量是array，id='vo'是指这个数据在模板输出时所使用的名称
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to run thinkphp project
Apr 09, 2024 pm 05:33 PM
To run the ThinkPHP project, you need to: install Composer; use Composer to create the project; enter the project directory and execute php bin/console serve; visit http://localhost:8000 to view the welcome page.
There are several versions of thinkphp
Apr 09, 2024 pm 06:09 PM
ThinkPHP has multiple versions designed for different PHP versions. Major versions include 3.2, 5.0, 5.1, and 6.0, while minor versions are used to fix bugs and provide new features. The latest stable version is ThinkPHP 6.0.16. When choosing a version, consider the PHP version, feature requirements, and community support. It is recommended to use the latest stable version for best performance and support.
How to run thinkphp
Apr 09, 2024 pm 05:39 PM
Steps to run ThinkPHP Framework locally: Download and unzip ThinkPHP Framework to a local directory. Create a virtual host (optional) pointing to the ThinkPHP root directory. Configure database connection parameters. Start the web server. Initialize the ThinkPHP application. Access the ThinkPHP application URL and run it.
Which one is better, laravel or thinkphp?
Apr 09, 2024 pm 03:18 PM
Performance comparison of Laravel and ThinkPHP frameworks: ThinkPHP generally performs better than Laravel, focusing on optimization and caching. Laravel performs well, but for complex applications, ThinkPHP may be a better fit.
How to install thinkphp
Apr 09, 2024 pm 05:42 PM
ThinkPHP installation steps: Prepare PHP, Composer, and MySQL environments. Create projects using Composer. Install the ThinkPHP framework and dependencies. Configure database connection. Generate application code. Launch the application and visit http://localhost:8000.
Development suggestions: How to use the ThinkPHP framework to implement asynchronous tasks
Nov 22, 2023 pm 12:01 PM
"Development Suggestions: How to Use the ThinkPHP Framework to Implement Asynchronous Tasks" With the rapid development of Internet technology, Web applications have increasingly higher requirements for handling a large number of concurrent requests and complex business logic. In order to improve system performance and user experience, developers often consider using asynchronous tasks to perform some time-consuming operations, such as sending emails, processing file uploads, generating reports, etc. In the field of PHP, the ThinkPHP framework, as a popular development framework, provides some convenient ways to implement asynchronous tasks.
ThinkPHP6 backend management system development: realizing backend functions
Aug 27, 2023 am 11:55 AM
ThinkPHP6 backend management system development: Implementing backend functions Introduction: With the continuous development of Internet technology and market demand, more and more enterprises and organizations need an efficient, safe, and flexible backend management system to manage business data and conduct operational management. This article will use the ThinkPHP6 framework to demonstrate through examples how to develop a simple but practical backend management system, including basic functions such as permission control, data addition, deletion, modification and query. Environment preparation Before starting, we need to install PHP, MySQL, Com
How is the performance of thinkphp?
Apr 09, 2024 pm 05:24 PM
ThinkPHP is a high-performance PHP framework with advantages such as caching mechanism, code optimization, parallel processing and database optimization. Official performance tests show that it can handle more than 10,000 requests per second and is widely used in large-scale websites and enterprise systems such as JD.com and Ctrip in actual applications.
