Laravel interview questions and answers for PHP developers

Laravel is a free, open-source PHP web framework, created by Taylor Otwell and intended for the development of web applications following the modelviewcontroller architectural pattern and based on Symfony. Here is a list of coding interview questions on Laravel to help you get ready for your next technical interview in 2021.

You can check all 41 Laravel tech interview questions here

1. Is there any CLI for Laravel?

Answer:

PHP artisan is the command line interface/tool included with Laravel. It provides a number of helpful commands that can help you while you build your application easily. Here are the list of some artisian commands:

• php artisan list
• php artisan help
• php artisan tinker
• php artisan make
• php artisan versian
• php artisan make modal modal_name
• php artisan make controller controller_name

Source:mytectra.com

2. What are some benefits of Laravel over other Php frameworks?

Answer:

• Setup and customisation process is easy and fast as compared to others.
• Inbuilt Authentication System
• Supports multiple file systems
• Pre-loaded packages like Laravel Socialite, Laravel cashier, Laravel elixir, Passport, Laravel Scout
• Eloquent ORM (Object Relation Mapping) with PHP active record implementation
• Built in command line tool Artisan for creating a code skeleton ,database structure and build their migration

Source:mytectra.com

3. Why do you prefer using Laravel?

Answer:

• Simple MVC that can be extended easily
• Clean and secure routing
• Powerful Eloquent ORM for database
• Migrations
• Third party plugins

Source:linkedin.com

4. What is the Laravel?

Answer:

Laravel is a free, open-source PHP web framework, created by Taylor Otwell and intended for the development of web applications following the modelviewcontroller (MVC) architectural pattern.

Source:codingcompiler.com

5. What is the Facade Pattern used for?

Answer:

Facades provide a static interface to classes that are available in the application's service container. Laravel facades serve as static proxies to underlying classes in the service container, providing the benefit of a terse, expressive syntax while maintaining more testability and flexibility than traditional static methods.

All of Laravel's facades are defined in the Illuminate\Support\Facades namespace. Consider:

    use Illuminate\Support\Facades\Cache;    Route::get('/cache', function () {        return Cache::get('key');    });

Source:laravel.com

6. What are Laravel events?

Answer:

Laravel event provides a simple observer pattern implementation, that allow to subscribe and listen for events in the application. An event is an incident or occurrence detected and handled by the program.

Below are some events examples in Laravel:

• A new user has registered
• A new comment is posted
• User login/logout
• New product is added.

Source:mytectra.com

7. Why are migrations necessary?

Answer:

Migrations are necessary because:

• Without migrations, database consistency when sharing an app is almost impossible, especially as more and more people collaborate on the web app.
• Your production database needs to be synced as well.

Source:linkedin.com

8. What is the purpose of the Eloquent cursor() method in Laravel ?

Answer:

The cursor method allows you to iterate through your database records using a cursor, which will only execute a single query. When processing large amounts of data, the cursor method may be used to greatly reduce your memory usage.

    foreach (Product::where('name', 'bar')->cursor() as $flight) {       //do some stuff    }

Source:laravelinterviewquestions.com

9. Which template engine does Laravel use?

Answer:

Laravel uses Blade Templating Engine.

Blade is the simple, yet powerful templating engine provided with Laravel. Unlike other popular PHP templating engines, Blade does not restrict you from using plain PHP code in your views. In fact, all Blade views are compiled into plain PHP code and cached until they are modified, meaning Blade adds essentially zero overhead to your application. Blade view files use the .blade.php file extension and are typically stored in the resources/views directory.

Source:laravelinterviewquestions.com

10. What is Service Container?

Answer:

The Laravel service container is a tool for managing class dependencies and performing dependency injection.

Source:laravel.com

11. What are artisan commands?

Answer:

Artisan is the name of the command-line interface included with Laravel. It provides a number of helpful commands for your use while developing your application for example:

    php artisan serve // To start Laravel project

Source:laravel.comv

12. How do you generate migrations?

Answer:

Migrations are like version control for your database, allowing your team to easily modify and share the application's database schema.

To create a migration, use:

    php artisan make:migration create_users_table

Source:laravel.com

13. List some official packages of Laravel

Answer:

• Cashier - Laravel Cashier provides an expressive, fluent interface to Stripe's and Braintree's subscription billing services.
• Dusk - Laravel Dusk provides an expressive, easy-to-use browser automation and testing API.
• Envoy - Laravel Envoy provides a clean, minimal syntax for defining common tasks you run on your remote servers.
• Horizon - Horizon provides a dashboard and code-driven configuration for your Laravel powered Redis queues.
• Passport - provides a full OAuth2 server implementation for your Laravel application in a matter of minutes.
• Scout - Laravel Scout provides a simple, driver based solution for adding full-text search to your Eloquent models.
• Socialite - a simple, convenient way to authenticate with OAuth providers using Laravel Socialite.

Source:laravel.com

14. Explain Migrations in Laravel

Answer:

Laravel Migrations are like version control for the database, allowing a team to easily modify and share the applications database schema. Migrations are typically paired with Laravels schema builder to easily build the applications database schema.

Source:laravelinterviewquestions.com

15. What is Eloquent Models?

Answer:

The Eloquent ORM included with Laravel provides a beautiful, simple ActiveRecord implementation for working with your database. Each database table has a corresponding Model which is used to interact with that table. Models allow you to query for data in your tables, as well as insert new records into the table.

Source:laravel.com

Thanks for reading and good luck on your next tech interview!

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