Top Laravel Interview Questions and Answers
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
If you want to rollback a specific migration, look in your migrations table, you’ll see each migration table has its own batch number. So, when you roll back, each migration that was part of the last batch gets rolled back.
Use this command to rollback the last batch of migration
php artisan migrate:rollback --step=1
Now, suppose you only want to roll back the very last migration, just increment the batch number by one. Then next time you run the rollback command, it’ll only roll back that one migration as it is a batch of its own.
To run test cases in Laravel, you should use the PHPUnit or artisan test command.
namespace Tests\Unit;
use PHPUnit\Framework\TestCase;
class ExampleTest extends TestCase
{
* @return void
public function testBasicTest()
{
$this->assertTrue(true);
}
}
The Eloquent cursor () method allows a user to iterate through the database records using a cursor, which will execute only a single query. This method is quite useful when processing large amounts of data to significantly reduce memory usage.
In laravel, we can call multiple Middlewares in Controller file and route file.
1. In Controller file, you can call like this.
public function __construct() {
$this->middleware(['revalidateBackHistory', 'validateUser']);
}
2. In route file, you can call multiple middleware like this.
Route::get('/', function () {
//
})->middleware(['firstMiddle', 'secondMiddle']);
Views contain the HTML provided by our application and separate our controller or application logic from our presentation logic. These are stored in the resources/views directory.
<html>
<body>
<h1>Best Interview Question<h1>
</body>
</html>
Faker is a type of module or packages which are used to create fake data for testing purposes. It can be used to produce all sorts of data.
It is used to generate the given data types.
- Lorem text
- Numbers
- Person i.e. titles, names, gender, etc.
- Addresses
- DateTime
- Phone numbers
- Internet i.e. domains, URLs, emails etc.
- Payments
- Colour, Files, Images
- UUID, Barcodes, etc
In Laravel, Faker is used basically for testing purposes.
- In Laravel, Queues are very useful for taking jobs, pieces of asynchronous work, and sending them to be performed by other processes and this is useful when making time-consuming API calls that we don’t want to make your users wait for before being served their next page.
- Another advantage of using queues is that you don’t want to work the lines on the same server as your application. If your jobs involve intensive computations, then you don’t want to take risk those jobs taking down or slowing your web server.
Please run below artisan commands step wise step.
php artisan config:clearphp artisan cache:clearcomposer dump-autoloadphp artisan view:clearphp artisan route:clear
Laravel offers a tool to include dummy data to the database automatically. This process is called seeding. Developers can add simply testing data to their database table using the database seeder. It is extremely useful as testing with various data types allows developers to detect bugs and optimize performance. We have to run the artisan command make:seeder to generate a seeder, which will be placed in the directory database/seeds as like all others.
How to create database seeder
To generate a seeder, run the make:seeder Artisan command. All seeders generated by the laravel will be placed in the database/seeds directory:
php artisan make:seeder AdminTableSeeder
With the help of update() function, we can update our data in the database according to the condition.
Blog::where(['id' => $id])->update([
'title' => ’Best Interview Questions’,
‘content’ => ’Best Interview Questions’
]);
OR
DB::table("blogs")->where(['id' => $id])->update([
'title' => ’Best Interview Questions’,
‘content’ => ’Best Interview Questions’
]);
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.