The list of Laravel Interview Questions and answers covered both basic and advanced laravel interview questions pattern that will help you to crack your Laravel job interview. Laravel is a free, open source PHP framework created by Taylor Otwell and allows developers to write expressive, elegant syntax. It is one of the most popular PHP frameworks like CodeIgniter and CakePHP. Here you will find Latest Laravel interview questions and answer that helps you to find job in Laravel.
Laravel Interview Questions and Answers List 2022
What is Laravel
Laravel is a free and open source PHP framework based on MVC ( model–view–controller ) 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.
Quick Points About Laravel
- Laravel is written In PHP Programming (PHP 7)
- Laravel is a PHP Framework for Developing websites and mobile API’s.
- developed By Taylor Otwell
- Laravel Based on MVC architectural pattern
- Dependencies Composer, OpenSSL, PDO, Mbstring, etc.
- Laravel Licence MIT License
Advantages of Laravel
- Offers a rich set of functionalities.
- Saves time.
- Website built in Laravel is more scalable and secure.
- Includes namespaces and interfaces that help to organize resources.
- Provides a clean API.
We have put together all the advanced Laravel interview questions and answers that will come in handy if you want to crack your next interview
How we can install Laravel by composer
You can install Laravel via composer by running below command. composer create-project laravel/laravel your-project-name version.
- Download composer from getcomposer.org/download
- 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.
What is Composer
Composer is a dependency manager for PHP. Composer will manage the dependencies you require on a project by project basis. This means that Composer will pull in all the required libraries, dependencies and manage them all in one place
What is Laravel Eloquent
The Eloquent ORM included with Laravel provides a beautiful, simple ActiveRecord implementation for working with your database. Each database table has a corresponding “Model” which is used to interact with that table. Models allow you to query for data in your tables, as well as insert new records into the table.
How to enable query log in Laravel
Use the enableQueryLog method to enable query log in Laravel
DB::connection()->enableQueryLog();
You can get array of the executed queries by using getQueryLog method:
$queries = DB::getQueryLog();
Default packages provided by Laravel 5.6
- Cashier
- Envoy
- Passport
- Scout
- Socialite
- Horizon
What is reverse Routing in Laravel
Reverse routing is generated URL’s based on route. It makes our application so much more flexible.
Example
Route:: get(‘login’, ‘login@index’); // It is normal route but after reverse routing, we can also call this link with
{{ HTML::link_to_action(‘login@index’) }}
What is Facade in laravel and how it is used
In Laravel, Facades offer a static interface to classes available inside the application’s service container. They serve as static proxies for underlying classes present in the service container, offering benefit of expressive syntax while maintaining more flexibility and testability than other available traditional static methods.
Example
use Illuminate\Support\Facades\Cache;
Route::get(‘/cache’, function () {
return Cache::get(‘PutkeyNameHere’);
});
What is dd() function in laravel
It is a helper function which is used to dump a variable’s contents to the browser and stop the further script execution. It stands for Dump and Die.
Example
dd($array);
Difference between Facades Vs Helper Functions
In addition to facades, Laravel includes a variety of “helper” functions which can perform common tasks like generating views, firing events, dispatching jobs, or sending HTTP responses. Many of these helper functions perform the same function as a corresponding facade.
What are the available Router Methods?
Route::get($uri, $callback);
Route::post($uri, $callback);
Route::put($uri, $callback);
Route::patch($uri, $callback);
Route::delete($uri, $callback);
Route::options($uri, $callback);
How to use custom table in Laravel Modal
You can use custom table in Laravel by overriding protected $table property of Eloquent.
sample uses
class User extends Eloquent{
protected $table=”my_user_table”;
}
How do you define Middleware
To create a new middleware, use the make:middleware Artisan command:
php artisan make:middleware CheckAge
This command will place a new CheckAge class within your app/Http/Middleware directory
What is View
Views contain the HTML served by your application and separate your controller / application logic from your presentation logic. Views are stored in the resources/views directory. A simple view might look something like this:
<html>
<body>
<h1>Hello, {{ $name }}</h1>
</body>
</html>
What is the service container in laravel
Service Container is a powerful tool which is used to manage class dependencies and perform dependency injection. It is also known as the IoC container. It offers several benefits to users such as.
Advantages of Service Container
- Freedom to manage class dependencies on object creation.
- Service contain as Registry.
- Ability to bind interfaces to concrete classes.
How to use cookies in laravel
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’)
What is Laravel’s service container
One of the most powerful feature of Laravel is its Service Container. It is a powerful tool for resolving class dependencies and performing dependency injection in Laravel.
Dependency injection is a fancy phrase that essentially means class dependencies are “injected” into the class via the constructor or, in some cases, “setter” methods.
Why are migrations necessary
Without migrations, database consistency when sharing an app is almost impossible, especially as more and more people collaborate on the web app. Your production database needs to be synced as well.
What is Lumen
Lumen is PHP micro-framework that built on Laravel’s top components.It is created by Taylor Otwell. It is perfect option for building Laravel based micro-services and fast REST API’s. It’s one of the fastest micro-frameworks available.
Laravel Supports which databases
Laravel makes interacting with databases extremely simple across a variety of database backends using either raw SQL, the fluent query builder, and the Eloquent ORM. Currently, Laravel supports four databases:
- MySQL
- PostgreSQL
- SQLite
- SQL Server
How to remove /public from URL in laravel
- Copy .htaccess file from public folder and now paste it into your root.
- Now rename server.php file/page to index.php on your root folder.
- Now you can remove /public word from URL and refresh the page.
How to use skip() and take() in Laravel Query
We can use skip() and take() both methods to limit the number of results in the query. skip() is used to skip the number of results and take() is used to get the number of result from the query
Pros and Cons of using Laravel Framework
Pros of using Laravel Framework
- Laravel framework has in-built lightweight blade template engine to speed up compiling task and create
- layouts with dynamic content easily.
- Hassles code reusability.
- Eloquent ORM with PHP active record implementation
- Built in command line tool “Artisan” for creating a code skeleton , database structure and build their migration
Cons of using laravel Framework
- Development process requires you to work with standards and should have real understanding of programming
- Laravel is new framework and composer is not so strong in compare to npm (for node.js), ruby gems and python pip.
- Development in laravel is not so fast in compare to ruby on rails.
- Laravel is lightweight so it has less inbuilt support in compare to django and rails. But this problem can be solved by integrating third party tools, but for large and very custom websites it may be a tedious task
