How to use the view component of ThinkPHP6-ThinkPHP-php.cn

How to use the view component of ThinkPHP6

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Release： 2023-06-20 11:10:43

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With the rapid development of the Internet, websites and applications are becoming more and more complex, which requires an efficient framework to shorten the development cycle. ThinkPHP is a leading PHP framework that provides a range of powerful features to help developers quickly build high-quality applications.

ThinkPHP version 6 introduces a new view component, making it easier for developers to build dynamic web pages, while also improving application performance and ease of use. This article will introduce how to use the view component of ThinkPHP6.

Overview

View is part of the MVC architecture, which refers to the part of the application responsible for displaying data in the web page. ThinkPHP6's view component is a powerful tool that can help developers separate page and business logic code to improve code readability and maintainability.

Use of views

In ThinkPHP6, view files are stored in the /views directory, and the default is /index.html. We can use the View class to render the view:

use thinkacadeView;

class Index
{
    public function index()
    {
        return View::fetch('index');
    }
}

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The above code demonstrates how to use the View class in the controller to render the view.

View inheritance and layout

View inheritance and layout is a very common technique that can help developers write view code more efficiently. In ThinkPHP6, we can specify the layout of the view by using the layout method:

use thinkacadeView;

class Index
{
    public function index()
    {
        return View::fetch('index')->layout('common/layout');
    }
}

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The above code sets the layout of the view file index.php to common/layout.html.

In the layout file, we can use yield statements to define slots, and then use section statements in subviews to fill them:

<!DOCTYPE html>
<html>
<head>
    <title>My Application</title>
</head>
<body>
    <header>
        <?php echo $this->section('header');?>
    </header>
    <main>
        <?php echo $this->section('main');?>
    </main>
    <footer>
        <?php echo $this->section('footer');?>
    </footer>
</body>
</html>

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In the above code, we define three slots, respectively in header, main and footer. In subviews, we can use section statements to fill them:

<?php echo $this->extend('common/layout');?>
<?php echo $this->section('header');?>
    <h1>Welcome to My Application</h1>
<?php echo $this->endSection();?>
<?php echo $this->section('main');?>
    <p>This is the main content of my application.</p>
<?php echo $this->endSection();?>

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The above code demonstrates how to use extend and section to extend and fill the slots of the view.

View variables and blocks

In ThinkPHP6, we can use the assign method to assign variables to the view:

use thinkacadeView;

class Index
{
    public function index()
    {
        return View::fetch('index', [
            'title' => 'Welcome to My Application',
            'content' => 'This is the main content of my application.'
        ]);
    }
}

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The above code demonstrates how Use the assign method to assign variables to the view. In the view, we can use the echo or

<!DOCTYPE html>
<html>
<head>
    <title><?php echo $title;?></title>
</head>
<body>
    <p><?php echo $content;?></p>
</body>
</html>

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The above code demonstrates how to output the assigned variables in the view.

In addition, we can also use blocks in views. Blocks are a special syntax that allows us to write reusable HTML structures that can be used to build navigation menus, modal boxes, tables, and more. In ThinkPHP6, we can use the block and show methods to define and display blocks:

<!DOCTYPE html>
<html>
<head>
    <title>My Application</title>
</head>
<body>
    <?php echo $this->block('content');?>
        <p>This is the main content of my application.</p>
    <?php echo $this->endBlock();?>
</body>
</html>

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The above code defines a block named content and defines some content in it. In the subview, we can use the show method to display it:

<?php echo $this->extend('common/layout');?>

<?php echo $this->section('main');?>
    <?php echo $this->show('content');?>
<?php echo $this->endSection();?>

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The above code shows how to display the block through the show method.

Summary

This article introduces how to use the view components of ThinkPHP6 to build high-quality web pages. We learned the basic concepts of views and how to use view components to render views, define layouts and slots, use variables and blocks, and more. By learning these technologies, we can improve our development efficiency and build more efficient and user-friendly applications and websites.

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