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What is laravel framework process

PHPzOriginal: 2023-04-23 09:14:55478browse

The Laravel framework is a popular PHP framework. It is favored by many developers for its simplicity, ease of use, efficiency, reliability, and powerful functions. When using the Laravel framework for WEB development, we need to clarify its development process, including installation, routing, controllers, models, views, etc. Let’s introduce the process of Laravel framework in detail.

1. Installation

The installation of the Laravel framework is very simple, just run the following command:

composer create-project --prefer-dist laravel/laravel your-project-name

where your-project-name represents the name of your project. This command will automatically download and install the latest version of the Laravel framework and its dependent libraries, and create a project named your-project-name. After the installation is complete, you can visit http://your-project-name/public Access your Laravel application.

2. Routing

Routing is one of the cores of the Laravel framework. It defines the requested URL and the corresponding processing method. In Laravel, there are two ways to define routes: top-level routes and controller routes.

1. Top-level routing

The top-level routing is to define the route directly in the routes/web.php file, including the request method and URL and the corresponding processing method, for example:

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

In this example, when the user visits the homepage, an anonymous function will be executed and a view named welcome will be returned.

2. Controller routing

In addition to using anonymous functions to handle routing, we can also use controllers to handle routing. First, you need to define a controller class and define a method in the controller class to handle routing, for example:

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class UserController extends Controller
{
    public function index()
    {
        return view('user.index');
    }
}

Then, define the route in the routes/web.php file using the following method:

Route::get('/user', 'UserController@index');

In this example, when the user accesses /user, the index method of the UserController controller will be executed and a view named user.index will be returned.

3. Controller

The controller is used to process routing requests and pass data to the view for display. In Laravel, a controller contains multiple methods, each method is used to handle different requests. We can use the Artisan command line tool to generate a controller, for example:

php artisan make:controller UserController

This command will generate a controller class named UserController in the app/Http/Controllers directory. In this controller class, we can generate data and return the view through the methods of this class.

4. Model

The model is the core of connecting to the database in the Laravel framework. It can help us query data in the database and perform operations. In Laravel, we can use Artisan commands to generate models, for example:

php artisan make:model User

This command will generate a model class named User in the app directory. We can use this model class to query and manipulate data in the database.

5. View

View is the main way to display data in the Laravel framework, and it is also a skill that front-end developers must master. In Laravel, we can use the Blade template engine to generate and render views. The Blade template engine provides a lot of convenient syntax to help us quickly generate pages, for example:

<!DOCTYPE html>
<html>
    <head>
        <title>@yield('title')</title>
    </head>
    <body>
        @section('sidebar')
            This is the master sidebar.
        @show

        <div class="container">
            @yield('content')
        </div>
    </body>
</html>

In this example, @yield is used to define a placeholder. When other views inherit this view, you can use @section Define a placeholder named sidebar. Use @parent in other views to replace placeholders in the parent view. Using the Blade template engine allows us to quickly generate and render views.

Summary: The above is a brief introduction to the Laravel framework development process. We can choose and use Laravel's various tools and processes as needed to build a more stable and efficient WEB application.

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