Laravel Interview Questions and Answers for Freshers

Dear Reader, here we are going to make you understood about “Laravel interview questions and answers for Freshers” which we watch out that the Interviewer wants and I am sure these questions and answer will be very important for you because here I am mention mostly asked questions and answer, let’s start.

1. What is Laravel?

Laravel is a free open source “PHP framework” based on the MVC design pattern.
It is created by Taylor Otwell. Laravel provides expressive and elegant syntax that helps in creating a wonderful web application easily and quickly.

2. What is database migration in Laravel? How to use this?
It is a type of version control for our database. It is allowing us to modify and share the application’s database schema easily.

A migration file contains two methods up() and down().

up() is used to add new tables, columns, or indexes database and the down() is used to reverse the operations performed by the up method.

3. What is Laravel Horizon?

Laravel Horizon provides a beautiful dashboard and code-driven configuration for your Redis queues.

4. Explain Events in Laravel?

An event is an action or occurrence recognized by a program that may be handled by the program or code. Laravel events provide a simple observer implementation, that allowing you to subscribe and listen for various events/actions that occur in your application.

All Event classes are generally stored in the app/Events directory, while their listeners are stored in app/Listeners of your application.

5. How to install Laravel via composer?

You can install Laravel via composer by running below command.

6. What are the traits in Laravel?

PHP Traits are simply a group of methods that you want to include within another class. A Trait, like an abstract class, cannot be instantiated by itself. The trait is created to reduce the limitations of single inheritance in PHP by enabling a developer to reuse sets of methods freely in several independent classes living in different class hierarchies.

Here is an example of a trait.

You could then include this Trait within other classes like this:

Now if you were to create new objects out of these classes you would find that they both have the share() method available:

7. Explain Bundles in Laravel?

In Laravel, bundles are also called packages. Packages are the primary way to extend the functionality of Laravel. Packages might be anything from a great way to work with dates like Carbon, or an entire BDD testing framework like Behat.In Laravel, you can create your custom packages too

8. Does Laravel support caching?

Yes, Laravel supports popular caching backends like Memcached and Redis.
By default, Laravel is configured to use the file cache driver, which stores the serialized, cached objects in the file system. For large projects, it is recommended to use Memcached or Redis.

9. What are service providers in Laravel?

Service Providers are a central place where all Laravel application is bootstrapped. Your application as well all Laravel core services are also bootstrapped by service providers.
All service providers extend the Illuminate\Support\ServiceProvider class. Most service providers contain a register and a boot method. Within the register method, you should only bind things into the service container. You should never attempt to register any event listeners, routes, or any other piece of functionality within the register method.

10. List types of relationships available in Laravel Eloquent?

Below are types of relationships supported by Laravel Eloquent ORM.

  • One To One
  • One To Many
  • One To Many (Inverse)
  • Many To Many
  • Has Many Through
  • Polymorphic Relations
  • Many To Many Polymorphic Relations

11. What is tinker in Laravel?

Laravel Tinker is a powerful REPL tool which is used to interact with Laravel application with the command line in an interactive shell. Tinker came with the release of version 5.4 is extracted into a separate package.

How to install tinker

composer require laravel/tinker

How to execute

To execute tinker we can use php artisan tinker command.

12. What is a REPL?

REPL is a type of interactive shell that takes in single user inputs, process them, and returns the result to the client.

The full form of REPL is Read—Eval—Print—Loop

13. How to create migration in Laravel?

To create migrations in Laravel, we have to use artisan command make: migration. The migration file will be stored in /database/migrations the directory. As each migration file contains a timestamp, we can easily determine the order of migrations.

14. How to check table exist or not in our database using Laravel?

We can use hasTable() to check table exists in our database or not.

Syntax

Schema::hasTable('users'); // here users is the table name

Example:- 

15. What is Active Record in Laravel?

With the user of Active Record in Laravel, our class directly maps into the present database table. It also fastens CRUD operations. Active Record is suitable for small projects and with big projects it can create various problems.

Syntax:

class User extends Eloquent {

}

16. How to change the default database type in Laravel?

Please update 'default' => env('DB_CONNECTION', 'mysql'), in config/database.php. Update MySQL as a database whatever you want.

17. What is the latest version of Laravel?

The latest version of Laravel is 5.8.

18. Which Template engine Laravel use?

Laravel uses “Blade Template Engine“. It is a straightforward and powerful templating engine that is provided with Laravel.

19. What is validation in Laravel and how it is used?

Validation is the most important thing while designing an application. It validates the incoming data. It uses ValidatesRequests trait which provides a convenient method to authenticate incoming HTTP requests with powerful validation rules.

Here are some Available Validation Rules in Laravel are listed:-

  • Alpha
  • Image
  • Date Format
  • IP Address
  • URL
  • Numeric
  • Email
  • Size
  • Min , Max
  • Unique with database etc

20. How to get current action name in Laravel?

request()->route()->getActionMethod()

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