Top Laravel Interview Questions and Answers

Last updated on Sep 05, 2024
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Laravel Interview Questions

Laravel is a highly regarded PHP framework used for web application development. It has gained significant popularity in the industry mainly because of its features, such as its simplicity, elegance, and robustness.

As per Builtwith, 1,729,522 have used Laravel technology, and there are 702,811 live websites worldwide. Regarding India, 20,002 websites currently use Laravel in India. As a result, the demand for talented Laravel developers is continuously increasing and is projected to rise further.

If you have to appear for an interview for a Laravel developer position, you've come to the right place. Here, we provide a comprehensive list of Laravel interview questions and answers that would help you prepare for your next interview. By familiarizing yourself with these questions, you can enhance your knowledge and confidence and gain a competitive edge in the job market. So, let's dive in and excel in your Laravel career journey!

Quick Facts About Laravel
What is the latest version of Laravel? 10.0, released on February 14th, 2023.
When was Laravel first released? June 2011.
Laravel is Created By Taylor Otwell
What language does Laravel use? PHP
Which is the best IDE for Laravel? Netbeans, PhpStorm, Atom, Sublime Text

Laravel Developer Interview Questions (2024)

  • What is Laravel and how does it differ from other PHP frameworks?
  • What are the key features of Laravel?
  • What is the importance of Composer in Laravel?
  • What are Service Providers and how do they work in Laravel?
  • What is the purpose of Facades in Laravel?
  • What is the difference between Eloquent and Query Builder in Laravel?
  • What is a Middleware in Laravel and how is it used?
  • What is the purpose of Artisan in Laravel and how is it used?
  • What is the difference between a Repository and a Service in Laravel?
  • How do you implement caching in Laravel?
  • How do you handle errors and exceptions in Laravel?
  • What is a Service Container in Laravel and how is it used?
  • How do you implement Authentication and Authorization in Laravel?
  • What are Laravel Contracts and how are they used?
  • How do you create and use Events and Listeners in Laravel?
  • What is the purpose of Queues in Laravel and how are they implemented?
  • How do you implement Localization in Laravel?
  • What is a Trait in Laravel and how is it used?
  • What is the difference between CSRF and XSS attacks in Laravel?
  • How do you optimize the performance of a Laravel application?

Laravel Interview Questions for 5 years experience

Here in this article, we will be listing frequently asked Laravel Interview Questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q21. What is the use of dd() in Laravel?
Answer

It is a helper function which is used to dump a variable's contents to the browser and stop the further script execution. It stands for Dump and Die.

Example

dd($array);

Q22. How to make a helper file in laravel?
Answer

We can create a helper file using Composer. Steps are given below:-

  • Please create a app/helpers.php file that is in app folder.
  • Add
    "files": [
        "app/helpers.php"
    ]

    in "autoload" variable.
  • Now update your composer.json with composer dump-autoload or composer update
Q23. Which is better CodeIgniter or Laravel?
Answer

Here are some of the reasons why Laravel is considered to be better than CodeIgniter:

Laravel CodeIgniter
It supports Eloquent object-relational mapping ORM. It does not support ORM.
It has in-built modularity features. It requires users to create and maintain modules using Modular Extension.
It is straightforward to perform Database Schema Migration. There are no particular features to simplify Database Schema Migration.
It provides an in-built template engine, called Blade. It does not provide an in-built template engine.
It is easier to develop REST API. Developing REST API is complicated.
Allows developers to establish custom HTTP Routes. It does not support HTTP Routes completely.

NOTE: If you are looking CodeIgniter Questions for interview preparations, then you can visit here.

Q24. What are the steps to install Laravel with composer?
Answer
Laravel installation steps:-
  • Download composer from https://getcomposer.org/download (if you don’t have a composer on your system)
  • Open cmd
  • Goto your htdocs folder.
  • C:\xampp\htdocs>composer create-project laravel/laravel projectname
    OR
    If you install some particular version, then you can use
    composer create-project laravel/laravel project name "5.6"

If you did not mention any particular version, then it will install with the latest version.

Q25. What is Service container?
Answer

A laravel service container is one of the most powerful tools that have been used to manage dependencies over the class and perform dependency injections.

Advantages of Service Container
  • Freedom to manage class dependencies on object creation.
  • Service contain as Registry.
  • Ability to bind interfaces to concrete classes.
Q26. How to use session in laravel?
Answer

1. Retrieving Data from session
session()->get('key');

2. Retrieving All session data
session()->all();

3. Remove data from session
session()->forget('key'); or session()->flush();

4. Storing Data in session
session()->put('key', 'value');

Q27. How to get last inserted id using laravel query?
Answer
In case you are using save()

$blog = new Blog;
$blog->title = ‘Best Interview Questions’;
$blog->save()
// Now you can use (after save() function we can use like this)
$blog->id // It will display last inserted id

In case you are using insertGetId()

$insertGetId = DB::table(‘blogs’)->insertGetId([‘title’ => ‘Best Interview Questions’]);

Q28. What are the difference between softDelete() & delete() in Laravel?
Answer
1. delete()

In case when we used to delete in Laravel then it removed records from the database table.

Example:

$delete = Post::where(‘id’, ‘=’, 1)->delete();

2. softDeletes()

To delete records permanently is not a good thing that’s why laravel used features are called SoftDelete. In this case, records did not remove from the table only delele_at value updated with current date and time.
Firstly we have to add a given code in our required model file.

use SoftDeletes;
protected $dates = ['deleted_at'];

After this, we can use both cases.

$softDelete = Post::where(‘id’, ‘=’, 1)->delete();

OR

$softDelete = Post::where(‘id’, ‘=’, 1)->softDeletes();

Q29. How to use cookies in laravel?
Answer
1. How to set Cookie

To set cookie value, we have to use Cookie::put('key', 'value');

2. How to get Cookie

To get cookie Value we have to use Cookie::get('key');

3. How to delete or remove Cookie

To remove cookie Value we have to use Cookie::forget('key')

4. How to check Cookie

To Check cookie is exists or not, we have to use Cache::has('key')

Q30. What is Auth? How is it used?
Answer

Laravel Auth is the process of identifying the user credentials with the database. Laravel managed it's with the help of sessions which take input parameters like username and password, for user identification. If the settings match then the user is said to be authenticated.

Auth is in-built functionality provided by Laravel; we have to configure.

We can add this functionality with php artisan make: auth

Auth is used to identifying the user credentials with the database.

Conclusion

This is highly recommended you go through all these laravel interview questions twice or thrice before going to an interview. Also, try to give an example of every question wherever possible. This will add a bonus point to your plate and shows your expertise in laravel coding. Also, make sure your answers should not be lengthy or sounds like a boring story. Keep your answers short and clear with the help of examples.

Reviewed and verified by Umesh Singh
Umesh Singh

My name is Umesh Singh having 11+ experience in Node.JS, React JS, Angular JS, Next JS, PHP, Laravel, WordPress, MySQL, Oracle, JavaScript, HTML and CSS etc. I have worked on around 30+ projects. I lo...