📅 最后修改于: 2023-12-03 15:17:12.029000 🧑 作者: Mango
Laravel 8 is the latest version of the popular PHP web framework. It comes with a number of new features and improvements, making it easier than ever to build high-quality web applications. In this guide, we'll cover the basics of getting started with Laravel 8.
Before you can start using Laravel 8, you'll need to make sure your development environment meets the following requirements:
To get started with Laravel 8, you can install it via Composer. Simply run the following command in your terminal:
composer create-project laravel/laravel my-app
This will create a new Laravel project in a directory called "my-app".
Once you've installed Laravel 8, you'll need to configure a few basic settings before you can start using it. The main configuration file for Laravel is located at my-app/config/app.php.
In this file, you'll need to set the env variable to development or production, depending on the environment you're using.
You'll also want to configure your database settings in the database section of the configuration file. By default, Laravel uses SQLite as the database driver, but you can also use MySQL, PostgreSQL, or other database systems.
One of the key features of Laravel 8 is its powerful routing system. With Laravel, you can define routes for your application using a simple syntax.
To define a route, you'll need to modify the routes/web.php file in your Laravel project. Here's an example of a simple route that displays a welcome message:
Route::get('/', function () {
return view('welcome');
});
This route maps the root URL of your application to a function that returns a view called "welcome". You can define additional routes for your application as needed.
Laravel 8 also comes with a powerful templating system called Blade. Blade makes it easy to create dynamic, reusable views for your application.
To create a new Blade template, you can create a file in the resources/views directory of your Laravel project. Here's an example of a simple Blade file that displays a greeting:
<!DOCTYPE html>
<html>
<head>
<title>Greetings</title>
</head>
<body>
<h1>Hello, {{ $name }}</h1>
</body>
</html>
Here, the Blade template includes a variable called $name, which is passed to the view from the controller.
In Laravel 8, controllers are responsible for handling requests and returning responses to clients. Controllers are defined as classes that extend the Illuminate\Routing\Controller class.
Here's an example of a simple controller that handles the route we defined earlier:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
class GreetingController extends Controller
{
public function index()
{
return view('greeting', [
'name' => 'World',
]);
}
}
This controller returns a view called "greeting" and passes a variable called $name to the view.
Laravel 8 is a powerful PHP web framework that comes with a number of new features and improvements. With Laravel, you can easily create high-quality web applications that are both efficient and scalable. Getting started with Laravel 8 is easy, and with a little practice, you can quickly learn to build complex web applications with ease.