Sunday, 5 April 2020

Laravel interview questions for 4 year experienced

Laravel interview questions for 4 year experienced

Question: What is Server Requirements for Laravel 5.6?
  1. PHP >= 7.1.3
  2. PDO PHP Extension
  3. Ctype PHP Extension
  4. OpenSSL PHP Extension
  5. XML PHP Extension
  6. JSON PHP Extension
  7. Mbstring PHP Extension
  8. Tokenizer PHP Extension

Question: What is Laravel Dusk?
It is expressive, easy-to-use browser automation and testing API.


Question: What is Laravel Echo?
Event broadcasting, evolved. Bring the power of WebSockets to your application without the complexity.


Question: How to Install Laravel via Composer?
composer create-project --prefer-dist laravel/laravel myproject



Question: How to Install any Specific version of Laravel via Composer
composer create-project --prefer-dist laravel/laravel blog "5.4.*" //Install Laravel 5.4 using Composer



Question: What is Lumen?
  1. Lumen is a micro-framework provided by Laravel.
  2. It is developed by creator of Laravel Taylor Otwell.
  3. It is mostly used for creating RESTful API's & microservices.
  4. Lumen is built on top components of Laravel.



Question: How to Install Lumen via Composer?
composer create-project --prefer-dist laravel/lumen myproject



Question: List benefits of using Laravel over other PHP frameworks?
  1. Artisan
  2. Migrations & Seeding
  3. Blade Template Engine
  4. Middleware - HTTP middleware provide a convenient mechanism for filtering HTTP requests
  5. Routing (RESTful routing)
  6. Authentication, Cashier, Scheduler, SSH, Socialite
  7. Security
  8. Unit Testing
  9. Caching


Question: Which Template Engine used by Laravel?
Blade is the simple, yet powerful templating engine provided with Laravel.


Question: How to enable maintenance mode in Laravel?
// Enable maintenance mode
php artisan down

// Disable maintenance mode
php artisan up



Question: What are Closures in Laravel?
A Closure is an anonymous function. Closures are often used as a callback methods and can be used as a parameter in a function.


Question: List out databases that laravel supports?
MySQL
PostgreSQL
SQLite
SQL Server


Question: How To Use Insert Query In Laravel?
class UserController extends Controller
{
    /**
     * Create a new user instance.
     *
     * @param  Request  $request
     * @return Response
     */
    public function store(Request $request)
    {
        $user = new User;
        $user->name = $request->name;
        $user->role = $request->role;
        $user->save();
    }



Question: 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);



Question: How To Use Update Query In Laravel?
$result = User::where('id',1)->update(['name'=>'My web technology experts notes']);



Question: How To Use Delete Query In Laravel?
$result = User::where('id',$id)->delete();



Question: What is Response in Laravel?
Following are different type of responses?
  1. View Responses
  2. JSON Responses
  3. File Downloads
  4. File Responses
  5. Response Macros
  6. Redirecting To Named Routes
  7. Redirecting To Controller Actions
  8. Redirecting To External Domains
  9. Redirecting With Flashed Session Data



Question: How to get current environment in Laravel?
$environment = App::environment();


Question: Where do you locate database configuration file?
Migrations are like version control for your database, that's allow to easily modify and share the application's database schema. Migrations are typically paired with Laravel's schema builder to easily build your application's database schema.


Question: What are laravel 6 features?
  1. Inbuilt CRSF (cross-site request forgery ) Protection.
  2. Inbuilt paginations
  3. Reverse Routing
  4. Query builder
  5. Route caching
  6. Database Migration
  7. IOC (Inverse of Control) .
  8. Job middleware
  9. Lazy collections



Friday, 3 April 2020

Laravel interview questions for 3 year experienced

Laravel interview questions for 3 year experienced

Question: Explain validation in Laravel.?
ValidatesRequests is the trait which is been used by Laravel classes for validating input data.
public function store(Request $request)
{
   $validatedData = $request->validate([
       'title' => 'required|unique:posts|max:255',
       'description' => 'required',
       'email' => 'required',
   ]);
}



Question: What is CSRF protection and CSRF token?
Cross-site forgeries are a type of malicious exploit where unauthorized person/command do/run on behalf of the authenticated user.
Laravel generates a CSRF "token" automatically for each active user session.
This token is used to verify that the authenticated user is the one actually making the requests.


Question: What is Laravel Dusk?
It is expressive, easy-to-use browser automation and testing API.


Question: What is Laravel Echo?
Event broadcasting, evolved. Bring the power of WebSockets to your application without the complexity.


Question: How do you install Laravel?
Laravel utilizes Composer to manage its dependencies. So, before using Laravel, make sure we have Composer installed on your machine.


Question: Explain Binding Instances?
You may also bind an existing object instance into the container using the instance method.
$api = new HelpSpot\API(new HttpClient);
$this->app->instance("HelpSpot\API", $api);



Question: Explain Extending Bindings?
$this->app->extend(Service::class, function($service) {
    return new DecoratedService($service);
});



Question: What is the make Method?
You may use the make method to resolve a class instance out of the container.
$api = $this->app->make("HelpSpot\API");



Question: What is Register Method?
within the register method, you should only bind things into the service container.


Question: What is the Boot Method?
if we need to register a view composer within our service provider? This should be done within the boot method.


Question: Where do you regiser service providers?
config/app.php configuration file


Question: What are Laravel’s Contracts?
Laravel’s Contracts are a set of interfaces that define the core services provided by the framework.


Question: Give example of Router?
Route::get("foo", function () {
return "Hello World";
});



Question: 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);



Question: How to 301 redirect in laravel (permanent redirect)
Route::redirect("/old", "/new", 301);



Question: How to 302 redirectin laravel (temporary redirect)
Route::redirect("/old", "/new", 302);



Question: What are Middleware Groups?
Sometimes you may want to group several middleware under a single key to make them easier to assign to routes.


Question: What are Redirect responses?
Redirect responses are instances of the Illuminate\Http\RedirectResponse class, and contain the proper headers needed to redirect the user to another URL.


Question: Where do you locate database configuration file?
The database configuration for your application is located at config/database.php.


Question: What are Blade Templates?
Blade is the simple, yet powerful templating engine provided with Laravel.