60+ Laravel Interview Questions And Answers in 2023 | Top 60+ Laravel Interview Questions (2023)- Devduniya

Laravel is a free, open-source PHP web framework used for web application development. It is a popular choice for developers because of its elegant syntax, which makes it easy to read and write. Laravel also comes with a range of features that make it easier to build modern, robust, and scalable web applications, such as routing, authentication, and a templating engine.

Laravel Developer:

A Laravel developer is a software developer who specializes in the Laravel web application framework. They use Laravel to build and maintain web applications, typically working with PHP and MySQL. Laravel developers are responsible for the development and maintenance of web applications, from the initial stages of planning and design to testing and deployment. They may also be involved in the ongoing maintenance and updates of the application.

How to become a Laravel Developer?

To become a Laravel developer, you will typically need to have strong skills in PHP, as well as experience with object-oriented programming and web development concepts. It is also helpful to have experience with other related technologies, such as HTML, CSS, and JavaScript. You can learn Laravel through online tutorials and courses, or by building your own projects and working on open-source projects.

In this Blog, we are going to see 60+ Laravel interview questions and answers with examples.

Here are the Top 60+ Laravel Interview Questions and Answers:

Q1. What is Laravel and why is it used?

Answer: Laravel is a free, open-source PHP web framework used for web application development. It is known for its elegant syntax and tools for tasks such as routing, authentication, and caching.

Q2. What are the key features of Laravel?

Answer: Some key features of Laravel include a modular packaging system with a dedicated dependency manager, different ways to access relational databases, utilities for application deployment and maintenance, and its orientation toward syntactic sugar.

Q3. How does Laravel differ from other PHP frameworks?

Answer: Laravel distinguishes itself from other PHP frameworks by emphasizing simplicity, clarity, and getting work done. It aims to make tasks that are common in web development, such as routing and authentication, easier to complete.

Q4. What is a route in Laravel and how is it used?

Answer: A route is a URL pattern that is used to handle HTTP requests. In Laravel, routes are defined in the app/Http/routes.php file. They are used to map a request to a specific controller action.

Q5. What is a controller in Laravel and how is it used?

Answer: A controller is a PHP class that handles HTTP requests. It is used to manage the logic for a particular part of the application. In Laravel, controllers are stored in the app/Http/Controllers directory.

Q6. How do you create a migration in Laravel?

Answer: To create a migration, use the Artisan command-line interface included with Laravel. Run the following command:

PHP artisan make: migration create_users_table

This will create a new migration file in the database/migrations directory.

Q7. What is Eloquent ORM and how is it used in Laravel?

Answer: Eloquent ORM (Object-Relational Mapping) is a PHP library that simplifies the process of working with relational databases. In Laravel, Eloquent ORM is used to define relationships between models and interact with the database.

Q8. What is a middleware in Laravel and how is it used?

Answer: A middleware is a layer of software that sits between the application and the HTTP server. In Laravel, middleware provides a convenient mechanism for filtering HTTP requests and taking actions based on the request.

Q9. How do you create custom middleware in Laravel?

Answer: To create a custom middleware, use the Artisan command-line interface included with Laravel. Run the following command:

php artisan make:middleware CheckAge

This will create a new middleware class in the app/Http/Middleware directory.

Q10. What is a request in Laravel and how is it used?

Answer: A request is an HTTP request made to a server. In Laravel, requests are represented as objects and can be accessed via the Request facade or injected into a controller method.

Q11. How do you create a request in Laravel?

Answer: To create a custom request in Laravel, use the Artisan command-line interface included with Laravel. Run the following command:

php artisan make:request StoreBlogPost

This will create a new request class in the app/Http/Requests directory.

Q12. How do you create a blade template in Laravel?

Answer: To create a blade template in Laravel, create a new file with a .blade.php extension in the resources/views directory. You can then use blade syntax in the template file to include PHP code and extend the layout.

Q13. What is a model in Laravel and how is it used?

Answer: A model in Laravel represents a table in a database and is used to interact with that table. Models allow you to query the database, insert new records, and update or delete existing records.

Q14. How do you create a model in Laravel?

Answer: To create a model in Laravel, use the Artisan command-line interface included with Laravel. Run the following command:

php artisan make:model Post

This will create a new model class in the app directory.

Q15. How do you create a relationship between models in Laravel?

Answer: To create a relationship between models in Laravel, use the appropriate relationship method in the model class. For example, to define a one-to-many relationship, you would use the hasMany method in the parent model and the belongsTo method in the child model.

Q16. What is dependency injection in Laravel and how is it used?

Answer: Dependency injection is a technique for achieving loose coupling between objects and their dependencies. In Laravel, dependency injection is used to resolve class dependencies automatically by injecting them into the constructor or method.

Q17. What is a service provider in Laravel and how is it used?

Answer: A service provider is a central place to register your application’s service containers and configurations. In Laravel, service providers are the central place to configure and bootstrap your application.

Q18. How do you create a service provider in Laravel?

Answer: To create a service provider in Laravel, use the Artisan command-line interface included with Laravel. Run the following command:

php artisan make:provider AppServiceProvider

This will create a new service provider class in the app/Providers directory.

Q19. What is an Artisan command and how is it used in Laravel?

Answer: Artisan is the command-line interface for Laravel. It provides a number of helpful commands for your use while developing your application. To use an Artisan command, open the terminal and navigate to the root directory of your Laravel application. Then, enter the artisan command followed by the desired command and any necessary options.

For example:

php artisan make:migration create_users_table

Q20. How does Laravel handle routing?

Answer: Laravel handles routing through the use of HTTP routes. These routes are defined in the app/Http/routes.php file. You can specify the HTTP method and URI that the route should respond to, and specify a closure or controller action that should be executed when the route is matched.

Example:

Route::get('/', function () {
return 'Hello World';
});

Q21. How does Laravel handle requests?

Answer: When a request is made to a Laravel application, it is handled by the app/Http/Kernel.php file’s HTTP kernel. The HTTP kernel contains a list of middleware that will be executed in the order they are listed. After the middleware has been executed, the request is then handed off to a route or controller.

Q22. What is dependency injection and how does it work in Laravel?

Answer: Dependency injection is a technique where an object receives its dependencies from external sources rather than creating them itself. In Laravel, dependency injection is used to resolve class dependencies automatically by the service container.

Example:

class UserController extends Controller
{
    public function show(Request $request, UserRepository $repository)
    {
        $user = $repository->find($request->id);

        return view('user.show', ['user' => $user]);
    }
}

Q23. How does Laravel implement controllers?

Answer: In Laravel, controllers are classes that are used to handle HTTP requests. They are defined in the app/Http/Controllers directory. You can define a controller by extending the base Controller class or by using a simple closure.

Example:

class UserController extends Controller
{
    public function show($id)
    {
        $user = User::find($id);

        return view('user.show', ['user' => $user]);
    }
}

Q24. How does Laravel handle events?

Answer: Laravel’s event system allows you to subscribe and listen to various events that occur in your application. You can use the Event facade or the event() helper function to trigger an event. You can also specify listeners for these events, which are classes or closures that will be executed when the event is fired.

Example:

Copy code
Event::listen('user.login', function ($user) {
    // code to execute when the user.login event is fired
});

event(new UserLogin($user));

Q25. How does Laravel handle tasks asynchronously?

Answer: Laravel provides support for executing tasks asynchronously using queues. Jobs are classes that represent a single task that should be executed and pushed onto a queue. Workers then process the jobs in the queue. This allows you to run time-consuming tasks in the background, improving the performance of your application.

Example:

class SendWelcomeEmail implements ShouldQueue
{
    public function handle(User $user)
    {
        Mail::to($user->email)->send(new WelcomeEmail);
    }
}

SendWelcomeEmail::dispatch($user);

Q26. How does Laravel handle relationships in Eloquent ORM?

Answer: Laravel’s Eloquent ORM provides support for defining relationships between models. There are several types of relationships available: one-to-one, one-to-many, many-to-many, and polymorphic relationships. You can define a relationship by adding a function to your model class and then calling the function to retrieve the related models.

Example:

class User extends Model
{
    public function posts()
    {
        return $this->hasMany(Post::class);
    }
}

$user = User::find(1);
$posts = $user->posts;

Q27. How does Laravel handle form validation?

Answer: Laravel provides several ways to validate incoming HTTP request data. You can use the built-in Validator class, or create custom validation rules. Validation rules can be specified in the form of an array or a rule string delimited by pipes.

Example:

$request->validate([
    'title' => 'required|unique:posts|max:255',
    'body' => 'required',
]);

Q28. How does Laravel handle HTTP requests?

Answer: Laravel provides several ways to send HTTP requests. You can use the HTTP client provided by Guzzle, the HTTP facade, or the request() helper function.

Example:

$response = Http::get('https://example.com');

$response = request()->get('https://example.com');

Q29. How does Laravel handle caching?

Answer: Laravel provides support for multiple cache backends, including file systems, databases, and memory. You can use the Cache facade or the cache() helper function to access the cache.

Example:

Cache::put('key', 'value', 10);
$value = cache('key');

Q30. How does Laravel handle task scheduling?

Answer: Laravel’s task scheduler allows you to define scheduled tasks that will be automatically executed by the framework. You can use the Artisan CLI to schedule tasks or specify them in the app/Console/Kernel.php file.

Example:

$schedule->command('emails:send')->daily();

Q31. How does Laravel handle file storage and retrieval?

Answer: Laravel provides support for storing and retrieving files through the use of the Storage facade or the storage() helper function. You can specify the disk you want to use for storage, which can be a local disk, a cloud storage provider, or a custom driver.

Example:

Storage::put('file.txt', 'content');
$contents = Storage::get('file.txt');

Q32. How does Laravel handle broadcasting events?

Answer: Laravel’s event broadcasting system allows you to broadcast events over a WebSocket connection. You can use Laravel Echo, a JavaScript library, to listen for events in the front end of your application.

Example:

Event::listen('event.name', function ($data) {
broadcast(new EventNameEvent($data));
});

Q33. How does Laravel handle task management with Horizon?

Answer : Laravel Horizon is a package for managing queues in Laravel applications. It provides a beautiful dashboard for monitoring the health of your queues, along with features like job retries and job tags.

Example:

php artisan horizon

Q34. How does Laravel handle task monitoring with Telescope?

Answer: Laravel Telescope is a package for monitoring the performance of your Laravel applications. It provides a dashboard for viewing data about requests, jobs, exceptions, and more.

Example:

php artisan telescope

Q35. How does Laravel handle task automation with Envoy?

Answer: Laravel Envoy is a package for automating tasks in your Laravel applications. It provides a simple, fluent syntax for defining tasks and dependencies, and can be used to deploy applications, run tests, and more.

Example:

@servers(['web' => '192.168.1.1'])
@task('deploy')
    cd /var/www/project
    git pull origin {{ $branch }}
    composer install --no-interaction --prefer-dist --optimize-autoloader
    npm install
    npm run production
@endtask

Q36. How does Laravel handle task management with Spark?

Answer: Laravel Spark is a package for bootstrapping Laravel projects with features like billing, team management, and scaffolding. It provides a simple, intuitive interface for managing tasks like subscriptions, invoices, and coupons.

Example:

php artisan spark:install

Q37. How does Laravel handle task scheduling with Cashier?

Answer: Laravel Cashier is a package for managing subscriptions and billing in Laravel applications. It provides a simple, expressive interface for creating and managing subscriptions, generating invoices, and handling payment failures.

Example:

$user->newSubscription('main', 'monthly')->create($creditCardToken);

Q38. How do you define custom middleware in Laravel?

Answer: You can define a custom middleware by using the make:middleware Artisan command, like so:

php artisan make:middleware CustomMiddleware

This will create a new file in the app/Http/Middleware directory. You can then define your custom middleware logic in this file.

Q39. How do you define a custom validation rule in Laravel?

Answer: You can define a custom validation rule by creating a new rule object and adding it to the $rules array in the Request object for the form you want to validate.

For example:

use Illuminate\Validation\Rule;
public function rules()
{
    return [
        'email' => [
            'required',
            Rule::unique('users')->ignore($this->route('user')),
        ],
    ];
}

Q40. How do you use Laravel Envoy?

Answer: Laravel Envoy is a task runner for Laravel. To use Envoy, you can create an Envoy.blade.php file at the root of your project and define your tasks in this file.

For example:

@servers(['web' => 'user@example.com'])
@task('deploy', ['on' => 'web'])
    cd site
    git pull origin master
    composer install
    php artisan migrate
@endtask

You can then run your tasks using the envoy Artisan command:

php artisan envoy run deploy

Q41. How do you define a many-to-many relationship in Laravel?

Answer: To define a many-to-many relationship in Laravel, you can use the belongsToMany method in your model.

For example:

Copy code
class User extends Model
{
public function roles()
{
return $this->belongsToMany(Role::class);
}
}

Q42. How do you define a one-to-one relationship in Laravel?

Answer: To define a one-to-one relationship in Laravel, you can use the hasOne method in your model.

For example:

class User extends Model
{
public function phone()
{
return $this->hasOne(Phone::class);
}
}

Q43. How do you perform database transactions in Laravel?

Answer: To perform database transactions in Laravel, you can use the DB facade’s transaction method.

For example:

DB::transaction(function () {
// database statements go here
});

Q44. How do you enable route caching in Laravel?

Answer: To enable route caching in Laravel, you can use the route:cache Artisan command. This will create a compiled version of your routes file, which can improve the performance of your application.

Q45. How do you enable model caching in Laravel?

Answer: To enable model caching in Laravel, you can use the Cache facade and the remember method on your model’s query builder.

For example:

$users = Cache::remember('users', $minutes, function () {
return User::all();
});

Q46. How do you clear the cache in Laravel?

Answer: To clear the cache in Laravel, you can use the cache:clear Artisan command. This will clear all the caches for your application.

Q47. How do you use view composers in Laravel?

Answer: View composers allow you to share data with views across multiple routes. You can define a view composer by binding a closure to a view in the boot method of your AppServiceProvider.

For example:

View::composer('view-name', function ($view) {
$view->with('key', 'value');
});

Q48. How do you use route model binding in Laravel?

Answer: Route model binding allows you to automatically inject a model instance into your route. You can enable route model binding by specifying a {model} parameter in your route and defining a bind method in your route service provider.

For example:

Route::get('users/{user}', function (App\User $user) {
//
});

Q49. How do you use events in Laravel?

Answer: You can use events in Laravel to execute code when certain actions occur in your application. To create an event, you can use the make:event Artisan command. You can then subscribe to the event using the listen method in your EventServiceProvider.

For example:

Event::listen('event-name', function ($data) {
// code to execute when the event occurs
});

Q50. How do you use policies in Laravel?

Answer: Policies in Laravel allow you to manage user authorization for your application. To create a policy, you can use the make:policy Artisan command. You can then define methods for each action you want to authorize.

For example:

class UserPolicy
{
public function view(User $user, User $model)
{
return $user->id === $model->id;
}
}

Q51. How do you use jobs in Laravel?

Answer: Jobs in Laravel allow you to execute time-consuming tasks asynchronously. To create a job, you can use the make:job Artisan command. You can then dispatch the job using the dispatch method.

For example:

$job = (new SendWelcomeEmail($user))
                ->onConnection('redis')
                ->onQueue('emails');
dispatch($job);

Q52. How do you use task scheduling in Laravel?

Answer: Task scheduling in Laravel allows you to schedule repetitive tasks to run automatically at specified intervals. You can define your scheduled tasks in the schedule method of the App\Console\Kernel class.

For example:

$schedule->command('emails:send')
->daily()
->at('17:00');

Q53. How do you use Laravel Mix?

Answer: Laravel Mix is a tool for compiling assets in a Laravel application. You can use it to compile CSS, JavaScript, and other assets by defining a webpack.mix.js file in your project root.

For example:

const mix = require('laravel-mix');
mix.js('src/app.js', 'dist')
   .sass('src/app.scss', 'dist');

Q54. How do you use Laravel Horizon?

Answer: Laravel Horizon is a queue management tool for Laravel. It provides a dashboard for monitoring your queues and job throughput. To use Horizon, you first need to install it using Composer:

composer require laravel/horizon

Then, you can use the horizon Artisan command to start the Horizon daemon:

php artisan horizon

Q55. How do you use Laravel Echo?

Answer: Laravel Echo is a tool for real-time event broadcasting in Laravel. To use Echo, you first need to install it using NPM:

npm install --save laravel-echo

Then, you can use the Echo JavaScript library to listen for events in your client-side code:

import Echo from 'laravel-echo';
window.Echo = new Echo({
    broadcaster: 'pusher',
    key: process.env.MIX_PUSHER_APP_KEY,
    cluster: process.env.MIX_PUSHER_APP_CLUSTER,
});
Echo.channel('channel-name')
    .listen('EventName', (e) => {
        console.log(e);
    });

Q56. How do you use Laravel Passport?

Answer: Laravel Passport is an OAuth2 server implementation for Laravel. To use Passport, you first need to install it using Composer:

composer require laravel/passport

Then, you can run the passport:install Artisan command to create the necessary database tables and create an encryption key:

php artisan passport:install

You can then use the Passport routes and controllers to implement OAuth2 in your application.

Q57. How do you use Laravel Scout?

Answer: Laravel Scout is a full-text search tool for Laravel. To use Scout, you first need to install it using Composer:

composer require laravel/scout

Then, you can use the Scout facade to search your models:

$results = User::search('john')->get();

Q58. How do you use Laravel Socialite?

Answer: Laravel Socialite is a tool for implementing OAuth authentication with external providers in Laravel. To use Socialite, you first need to install it using Composer:

composer require laravel/socialite

Then, you can use the Socialite facade to authenticate users with an external provider:

return Socialite::driver('github')->redirect();

Q59. How do you use Laravel Telescope?

Answer: Laravel Telescope is a debugging tool for Laravel. To use Telescope, you first need to install it using Composer:

composer require laravel/telescope

Then, you can use the telescope:install Artisan command to install the necessary database tables and assets:

php artisan telescope:install

You can then access the Telescope dashboard at the `/telescope.

Q60. How do you use Laravel Telescope?

Answer: Laravel Telescope is a debugging tool for Laravel. To use Telescope, you first need to install it using Composer:

composer require laravel/telescope

Then, you can use the telescope:install Artisan command to install the necessary database tables and assets:

php artisan telescope:install

You can then access the Telescope dashboard at the /telescope route.

Q61. How do you use Laravel Valet?

Answer: Laravel Valet is a local development environment for Laravel. To use Valet, you first need to install it using Composer:
Copy code

composer global require laravel/valet

Then, you can use the valet park command to start Valet and the valet link command to create a new Valet site:

valet park
valet link my-site

Q62. How do you use Laravel Vapor?

Answer: Laravel Vapor is a serverless deployment platform for Laravel. To use Vapor, you first need to install the Vapor CLI using Composer:

composer global require laravel/vapor-cli

Then, you can use the vapor command to deploy your Laravel application to Vapor:

vapor deploy

Q63. How do you use Laravel Nova?

Answer: Laravel Nova is an administration panel for Laravel. To use Nova, you first need to purchase a license and install the Nova package using Composer:

composer require laravel/nova

Then, you can use the nova:install Artisan command to install Nova in your application:

php artisan nova:install

You can then access the Nova dashboard at the /nova route.

Q64. How do you use Laravel Cashier?

Answer: Laravel Cashier is a billing library for Laravel. To use Cashier, you first need to install it using Composer:

composer require laravel/cashier

Then, you can use the Billable trait in your model to enable billing for that model:

use Laravel\Cashier\Billable;
class User extends Model
{
    use Billable;
}

You can then use the Cashier methods to manage subscriptions and payments for your users.

Conclusion:

In this blog, we have discussed 60+ Laravel interview questions and answers. These interview questions and answers can help you to crack any interview in the
field of web development or as a PHP developer.

If you have any queries related to this article, then you can ask in the comment section, we will contact you soon, and Thank you for reading this article.

Follow me to receive more useful content:

Instagram | Twitter | Linkedin | Youtube

Thank you