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Top 70 Laravel Interview Questions for Tech Interview Preparation

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Laravel is considered a haven for web artisans. In this Laravel interview questions article, we discuss the top interview questions Laravel developers can expect at FAANG interviews. 

Laravel is an open-source PHP framework designed to make developing web apps faster and easier through its built-in features. It is these features that make Laravel so widely used by web developers. It has an expressive and elegant syntax. 

It works more efficiently by accessing relational databases, making application deployment, orientation, and development easy. Thus, taking the pain out of development by making common tasks used in the majority of web projects more simplified.

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In this article, we will cover:

  • Laravel Interview Questions and Answers
  • Most Frequently Asked Laravel Interview Questions
  • More Sample Laravel Interview Questions
  • Laravel Advanced Interview Questions
  • Laravel Interview FAQs

What Is Laravel Framework?

Laravel is a widely popular, open-source PHP web application framework. PHP developers are especially fond of Laravel because of its documentation, expressiveness, and ease of learning. Whether you are a rookie or an advanced developer, it is one of the most developer-friendly frameworks to code with. Laravel offers deeper insights, functionalities, and more robust enterprise solutions as you grow as a developer. Not only this, Laravel is highly scalable, allowing it to be used with Vapor to manage high volumes of queries on AWS.

Laravel benefits from a community of PHP developers and enthusiasts who are driven to provide solutions and ensure rapid and efficient web development. The syntax is simple, tools for database migration are readily available, and the authentication system is simple and secure. On Github, Laravel has scored 67.5k stars, making it the most popular development framework listed on the social coding platform.

Recommended Reading: The Hardest and Easiest Programming Languages to Learn for FAANG Interviews

Laravel Interview Questions and Answers

Laravel interview questions will vary based on the seniority and domain of the role you are interviewing for. Based on technical specialization, the types of Laravel questions can be categorized based on Queues and Jobs, Eloquent, Artisan Commands, APIs, Events, and Automated Testing, among others. Here are some of the most frequently asked Laravel framework interview questions:

1. What is Laravel?
Laravel is a widely popular open-source PHP web application framework. It runs under the MIT license and was originally intended for web application development using the MVC architectural pattern. 

2. Which is the most recent Laravel version being used these days?
The most recent Laravel version being used is version 8. 

3. Describe composer
A composer is a PHP package manager at the application level. It offers standard formats for the management of PHP software libraries and dependencies.

4. What do you understand about HTTP middleware?
HTTP middleware is used to filter HTTP requests. There is a middleware present in Laravel that is responsible for checking if an application user is authenticated.

5. List the aggregates methods of the query builder
Some query builder aggregates methods are: 1max(), min(), sum(), avg(), and count()

6. Describe a Route
A route is an endpoint given by a Uniform Resource Identifier (URI) and is a pointer to a method on a controller. It decides which HTTP methods will hit the URI.

7. Why is a Route used?
A route is stored in the routes folder located inside the given root directory of the project. A few different corresponding files to the different application sides exist by default.

8. What are Bundles?
Bundles are simply packages that increase Laravel’s functionality. This package will have features like views, migrations, configuration, tasks, and routes.

9. What are the most important directories in a Laravel application?
The most important directories in a Laravel application are:

  • App/: The application code lives in this source folder. It contains all controllers, models, and policies.
  • Config/: It keeps the application’s configuration files. Although not usually modified directly, they rely on the support of .env files at the app’s root.
  • Database/: It contains database files, seeds, test factories, and migrations.
  • Public/: This is a folder accessible to the public and contains compiled assets and an index.php file.

10. Describe a Controller
A controller is denoted by ‘C’ in the Model View Controller (MVC) architecture.

11. What is reverse routing?
Reverse routing generates a URL based on a symbol or name and is used to make the Laravel application more flexible.

12. What are traits in Laravel?
Traits in Laravel are functions that can be included within another class. This trait acts like an abstract class. It is not possible to instantiate directly.

13. What are contracts in Laravel?
Contracts are a set of interfaces in the Laravel framework providing core services. When they are written in Laravel, they include corresponding framework implementations.

14. How do you register a service provider?
In Laravel, service providers can be registered in the config/app.php configuration file. This file contains an array where you need to mention the service provider class name for registration. 

15. Where are Laravel’s Facades defined?
Laravel’s facades are defined in the Illuminate\Support\Facades namespace.

Recommended Reading: Most Popular Coding Languages for FAANG Interviews in 2021

Most Frequently Asked Laravel Interview Questions

Following are some Laravel interview questions that regularly feature in tech interviews:

  1. Is caching possible in Laravel?
  2. Name some new features of Laravel 8.
  3. Why is Laravel considered the best PHP framework of 2021? 
  4. How will you extend the login expiration time in Auth? 
  5. Pick one - CodeIgniter or Laravel? 
  6. How will you make a Constant and use it globally?
  7. How will you enable a query log in Laravel? 
  8. Explain Middleware in Laravel.
  9. Define Database Migration. How can you use it in Laravel?

More Sample Laravel Interview Questions

Here are some more sample questions that you can prepare for your interview:

  1. Differentiate between the post and get method.
  2. What are the default packages available in Laravel 5.6?
  3. Explain the concept of service containers in Laravel.
  4. How do you enable query log?
  5. What are Events in Laravel?
  6. Explain the concept of dependency injection.
  7. Are there any advantages of using Laravel?
  8. Explain the concept of validation in Laravel.
  9. What is the full form of ORM?
  10. What will you do to reduce the use of memory?
  11. What are the types of relationships available in Laravel Eloquent?
  12. Which Template Engine is utilized by Laravel?
  13. Which databases are supported by Laravel?
  14. Explain why migrations are important.
  15. Explain the concept of Lumen.
  16. What is PHP artisan?
  17. Describe the generation of URLs.
  18. Which class will you use to handle exceptions?
  19. Name some common HTTP error codes.
  20. Explain the concept of a fluent query builder.
  21. Where is the dd() function used?
  22. Name some commonly used artisan commands Laravel.
  23. How do you configure a mail-in Laravel?
  24. Explain the concept of Auth.
  25. What is the difference between delete() and softDeletes()?
  26. How will you make a real-time sitemap.xml file?
  27. What is faker in Laravel?
  28. How will you check if a table exists or is in the database?
  29. Differentiate between insertGetId() function and insert() in Laravel.
  30. What is the active record concept in Laravel?
  31. What are the basic concepts in Laravel?
  32. Describe Implicit Controller.
  33. How will you use the custom table in Laravel Model?
  34. What is an MVC framework?
  35. Explain @include.

Laravel Advanced Interview Questions

  1. Differentiate between {{ $username }} and {!! $username !!}? 
  2. Explain reverse Routing in Laravel.
  3. In Laravel, what are Relationships?
  4. What is Eloquent?
  5. Describe throttling and explain how you will implement it in Laravel.
  6. Explain Facades in Laravel.
  7. What are Events?
  8. What is logging in Laravel?
  9. Explain Localization in Laravel.
  10. How will you request validation in Laravel?
  11. What is a Service Container?

For tech interview questions and answers, head to the Problems page.

Laravel Interview FAQs

1. What is the salary of a Laravel developer?
A. The average salary of a Laravel developer is $79,161 per year in the United States. Senior developers can make up to $113,113 per annum. (Source: Salary.com and Glassdoor).

2. Are Laravel jobs in demand?
A. According to Indeed, at the entry-level, job listings for PHP Developer roles have shot up since January 2020. PHP development roles such as Laravel Developers are among the fastest-growing tech roles in the United States. WordPress and Wikipedia are among the biggest websites that run on server-side PHP code. According to Stack Overflow, it is still one of the most often used scripts for building websites and now web applications.

3. Which companies use the Laravel framework?
A.  The top companies using the Laravel PHP framework are WordPress, Wikipedia, 9GAG, Pfizer, BBC, PedidosYa, Ratio, TourRadar, Crowdcube, and About You.

4. What are the top skills a Laravel developer should have?
A. The top skills in demand these days in a Laravel developer are Web development (HTML, CSS, JavaScript), Database Management (Oracle 12c, MySQL, and Microsoft SQL), OOP and MVC (Object-oriented mode, classes, objects, methods, traits), Project Management frameworks, and soft skills.

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