Top Laravel Interview Questions (2024)

1. What is Laravel?

2. Is Laravel used for frontend or backend development?

3. What are the advantages of Laravel?

4. What are the main features of Laravel?

5. How to join 3 table using condition in Laravel?

6. How to clear cache in Laravel?

Q: What is Laravel?
Ans:

Laravel is a free, open-source PHP web framework based on Symfony that is meant for the building of web applications using the model-view-controller architectural pattern. Laravel aims to make development easier by simplifying typical tasks seen in the majority of web projects, such as authentication, routing, sessions, and caching.

Q: Is Laravel used for frontend or backend development?
Ans:

Laravel is a backend development framework with good performance and capabilities that adheres to the MVC pattern and reduces development time.

Q: What are the advantages of Laravel?
Ans:

1. Laravel's rapid development time translates to lower expenses and faster outcomes for the business.
2. Most websites have advanced security features that can be easily configured to improve security, such as user authentication and restricted access.
3. Laravel supports caching and provides speed optimization strategies such as memory utilisation reduction and database indexing that are extremely simple to apply.
4. Third-party integrations are extremely adaptable and simple.

Q: What are the main features of Laravel?
Ans:

Below are some of the main features of Laravel:

1. Authentication
2. Innovative Template Engine
3. Efficient ORM
4. Integrated Security
5. Secure Migration System
6. MVC Architecture Support
7. Unique Unit-testing
8. Libraries and Modular

Q: How to join 3 table using condition in Laravel?
Ans:

SELECT * FROM USER u JOIN ADDRESSES add
ON (u.id = add.user_id)
JOIN DEPTS d ON (add.address_id = d.user_id)
WHERE u.id = 5

$depts = DB::table('users')
->leftjoin('addresses', 'users.user_id', '=', 'addresses.addr_id')
->leftjoin('depts', 'depts.user_id', '=', 'users.id')
->where('users.id', 5)
->get();

Q: How to clear cache in Laravel?
Ans:

Here are some typical commands we can use in our terminal to resolve the problem.

1. Clearing Configuration Cache

   $ php artisan config:clear
   Configuration cache cleared!

2. Clearing Route Cache

   $ php artisan route:clear
   Route cache cleared!

3. Clearing View Cache

   $ php artisan view:clear
   Compiled views cleared!

4. Clearing Events Cache

   $ php artisan event:clear
   Cached events cleared!

5. Clearing Application Cache

   $ php artisan cache:clear
   Application cache cleared!

6. Clearing All Cache

   $ php artisan optimize:clear
   Compiled views cleared!
   Application cache cleared!
   Route cache cleared!
   Configuration cache cleared!
   Compiled services and packages files removed!
   Caches cleared successfully!

7. Clear Cache in Laravel (Browser)

   Route::get('/clear-cache', function()
   {
    Artisan::call('cache:clear');
    return "Cache is cleared";
   });