Let's talk about some knowledge and skills about Laravel page loading-Laravel-php.cn

Let's talk about some knowledge and skills about Laravel page loading

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Release： 2023-04-14 17:21:08

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Laravel is a popular PHP-based web application development framework that greatly simplifies web application development. Its powerful functions and rich documentation make Laravel one of the preferred frameworks for developers to implement efficient web applications.

In Laravel, pages are one of the most critical parts of a web application. Therefore, developers need to have a deep understanding of how Laravel loads pages to achieve the best user experience. The following will introduce some knowledge and skills about Laravel page loading.

Route

Route is one of the most basic concepts in Laravel. It is the link between the URL requested by the user and the specific operation in the application. mapping relationship between. Laravel's routes can be defined in routing files, such as web.php or api.php, or in controllers. For example, we can define the following route in web.php:

Route::get('/', function () {
    return view('welcome');
});

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Here, we define a route for a GET request with the URL '/' (website root directory), which will return a basic welcome page (welcome.blade.php). Because Laravel renders pages through views, we use the view() function to load the template here.

View

View is the template used in Laravel to generate and render web pages. They are rendered using the Blade template engine. Laravel supports multiple view file formats, such as .blade.php, .php, .css and .jss, etc.

Laravel can render Vue components through simple syntax. For example, we can load a component in a view like this:

<div id="app">
    <example-component></example-component>
</div>
<script src="{{ asset(&#39;js/app.js&#39;) }}"></script>

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When Laravel loads the view, it automatically handles inserting the component into the corresponding location. In this example, Laravel uses the asset() function to generate the full URL path in order to load the app.js file.

Layout

Layout unifies the look and feel of all pages in a web application. In Laravel, layouts are usually defined in the layouts folder and referenced in views via the @extends directive.

<!-- layouts/app.blade.php -->
<!DOCTYPE html>
<html>
    <head>
        <title>@yield('title')</title>
        <link href="{{ asset(&#39;css/app.css&#39;) }}" rel="stylesheet">
    </head>
    <body>
        @yield('content')
        <script src="{{ asset(&#39;js/app.js&#39;) }}"></script>
    </body>
</html>

<!-- 视图中引用的方式 -->
@extends('layouts.app')

@section('title', 'Page Title')

@section('content')
    <p>This is my body content.</p>
@endsection

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In this example, we define an 'app' layout file and use @extends to reference it in the view. The view uses @extends, uses the @section('content') directive at the end, and implements the corresponding page content.

Inheritance

In addition to layout (Layout), Laravel also allows inheritance (Inheritance) between views (View). This means that one view can inherit its structure and content from another view.

<!-- layouts/base.blade.php -->
<!DOCTYPE html>
<html>
    <head>
        <title>@yield('title')</title>
        <link href="{{ asset(&#39;css/app.css&#39;) }}" rel="stylesheet">
    </head>
    <body>
        <header>
            @yield('header')
        </header>
        <nav>
            @yield('nav')
        </nav>
        <main>
            @yield('content')
        </main>
        <footer>
            @yield('footer')
        </footer>
        <script src="{{ asset(&#39;js/app.js&#39;) }}"></script>
    </body>
</html>

<!-- 视图中引用的方式 -->
@extends('layouts.base')

@section('title', 'Page Title')

@section('header')
    <h1>Hello World</h1>
@endsection

@section('nav')
    <ul>
        <li><a href="/">Home</a></li>
        <li><a href="/about">About Us</a></li>
        <li><a href="/contact">Contact Us</a></li>
    </ul>
@endsection

@section('content')
    <p>This is my body content.</p>
@endsection

@section('footer')
    <p>&copy; 2021 My Web App</p>
@endsection

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In this example, we define a 'base' layout file and use @extends to reference it in the view. The view uses the @section directive to inherit the content of each part of the layout file.

In short, page loading is an important link in Laravel development, and it represents one of the core functions of web applications. Using technologies such as routing, views, layout, and inheritance, you can easily build beautiful, responsive web pages and provide a better user experience. Therefore, developers must learn to master Laravel page loading skills in order to better develop stable and efficient web applications.

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