laravel login implementation

Laravel is a popular PHP framework that provides many powerful tools and features to help developers easily build WEB applications. Among them, implementing the login function is an important step in developing applications. This article will introduce how to implement the login function in Laravel.

1. Installing Laravel

Laravel can be installed through Composer, which is a PHP dependency management tool. To install Composer, enter the following command:

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer

After the installation is complete, use the following command to create the Laravel application.

composer create-project --prefer-dist laravel/laravel projectname

2. Database configuration

Before using Laravel’s authentication system, you need to configure the database. Open the .env file and change the database connection settings in the following example.

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=mydatabase
DB_USERNAME=root
DB_PASSWORD=

3. Generate user authentication system

Run the following command to generate Laravel's user authentication system.

php artisan make:auth

This will create a basic view and controller for user registration, login and logout.

4. Create user model

Next, you need to create a user model. The user model provided by Laravel by default is AppUser, which can be created using the following command .

php artisan make:model User

5. Registration and login verification

Registration verification:

public function store(Request $request)
{
    $this->validate($request, [
        'name' => 'required',
        'email' => 'required|email|unique:users,email',
        'password' => 'required|min:6|confirmed',
    ]);
    $user = User::create([
        'name' => $request['name'],
        'email' => $request['email'],
        'password' => bcrypt($request['password']),
    ]);
    Auth::login($user);
    return redirect()->route('dashboard');
}

Login verification:

public function login(Request $request)
{
    $this->validate($request, [
        'email' => 'required|email',
        'password' => 'required|min:6',
    ]);
    $credentials = [
        'email' => $request['email'],
        'password' => $request['password'],
    ];
    if (Auth::attempt($credentials)) {
        return redirect()->intended('dashboard');
    } else {
        return redirect()->back()->withInput($request->only('email', 'remember'));
    }
}

In the above code, The attempt method will verify the user credentials. If the verification is passed, the user status will be saved through the session, and the Auth::check method can be used to check whether the user is logged in.

6. Middleware

Middleware provides further control and protection of applications. Laravel has many predefined middlewares, including middleware that verifies whether the user is logged in.

Add authentication middleware to your application and apply it to the routes that need to be protected:

Route::middleware(['auth'])->group(function () {
    Route::get('/dashboard', 'DashboardController@index')->name('dashboard');
});

7. Force HTTPS

In Laravel , you can easily force your application to use HTTPS:

Add the following line in .env:

APP_ENV=production
APP_URL=https://example.com

Then, open the AppServiceProvider class, Add the following line:

public function boot()
{
    if (config('app.env') === 'production') {
        URL::forceScheme('https');
    }
}

This will force the application's URL link to be converted to the HTTPS protocol.

8. Summary

So far, this article has introduced how to implement the login function in Laravel, including installing Laravel, configuring the database, generating user authentication system, creating user model, registration and Login authentication, middleware and enforcing the use of HTTPS. Using the steps provided in this article to implement Laravel's login functionality can help you build more secure and feature-rich applications.

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