Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.
Laravel Getting Started Example
What is Laravel?
Laravel is a PHP framework designed for fast and easy building of web applications. It provides a range of powerful features that allow developers to focus on business logic without worrying about the underlying infrastructure.
Install Laravel
- Install Composer (PHP Package Manager).
- Use Composer to install Laravel CLI globally:
composer global require laravel/installer
. - Run
laravel new my-app
in the project directory to create a new application.
Create a route
Routing defines the relationship between URLs and processing functions in a web application. Create a route in routes/web.php
:
<code class="php">Route::get('/welcome', function () { return view('welcome'); });</code>
Write a view
The view contains HTML and PHP code to render the application's interface. Create a view in resources/views/welcome.blade.php
:
<code class="php"> <title>Welcome</title> <h1>歡迎來到Laravel!</h1> </code>
Run the application
Run php artisan serve
in the project directory to start the development server. Then visit http://localhost:8000/welcome
in your browser to view the view.
Database integration
Laravel provides out-of-the-box integration with MySQL, Postgres, and other databases. Use migration to create and modify database tables:
<code class="php">php artisan make:migration create_users_table php artisan migrate</code>
Models and controllers
The model represents an entity in the database and the controller processes HTTP requests.
Create a model in app/Models/User.php
:
<code class="php">class User extends Model { // ... }</code>
Create a controller in app/Http/Controllers/UserController.php
:
<code class="php">class UserController extends Controller { public function index() { $users = User::all(); return view('users.index', ['users' => $users]); } }</code>
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