Laravel interview questions and answers 2018

Laravel Interview questions and answers 2018 
Laravel is a powerful MVC PHP framework, designed for developers who need a simple and elegant toolkit to create full-featured web applications. Laravel was created by Taylor Otwell. This is a brief tutorial that explains the basics of Laravel framework.

Laravel is an open-source PHP framework, which is robust and easy to understand. It follows a model-view-controller design pattern. Laravel reuses the existing components of different frameworks which helps in creating a web application. The web application thus designed is more structured and pragmatic.

Laravel offers a rich set of functionalities which incorporates the basic features of PHP frameworks like CodeIgniter, Yii and other programming languages like Ruby on Rails. Laravel has a very rich set of features which will boost the speed of web development.

If you are familiar with Core PHP and Advanced PHP, Laravel will make your task easier. It saves a lot time if you are planning to develop a website from scratch. Moreover, a website built in Laravel is secure and prevents several web attacks.

Advantages of Laravel

Laravel offers you the following advantages, when you are designing a web application based on it −

  • The web application becomes more scalable, owing to the Laravel framework.
  • Considerable time is saved in designing the web application, since Laravel reuses the components from other framework in developing web application.
  • It includes namespaces and interfaces, thus helps to organize and manage resources.

Composer

Composer is a tool which includes all the dependencies and libraries. It allows a user to create a project with respect to the mentioned framework (for example, those used in Laravel installation). Third party libraries can be installed easily with help of composer.

All the dependencies are noted in composer.json file which is placed in the source folder.

1. What is Laravel?

Laravel is free open source “PHP framework” based on MVC 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.

2. What are pros and cons of using Laravel Framework?

Pros of using Laravel Framework
  1. Laravel framework has in-built lightweight blade template engine to speed up compiling task and create layouts with dynamic content easily.
  2. Hassles code reusability.
  3. Eloquent ORM with PHP active record implementation
  4. Built-in command line tool “Artisan” for creating a code skeleton, database structure and build their migration
Cons of using laravel Framework
  1. The development process requires you to work with standards and should have a real understanding of programming
  2. Laravel is new framework and composer is not so strong in comparison to npm (for node.js)ruby gems and python pip.
  3. Development in laravel is not so fast in comparison to ruby on rails.
  4. 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

    3. Explain Events in laravel ?

    An event is an action or occurrence recognized by a program that may be handled by the program or code. Laravel events provide a simple observer implementation, that allowing you to subscribe and listen for various events/actions that occur in your application.

    All Event classes are generally stored in the app/Events directory, while their listeners are stored in app/Listeners of your application.

    4. Explain validations in laravel?

    In Programming, validations are a handy way to ensure that your data is always in a clean and expected format before it gets into your database. Laravel provides several different ways to validate your application incoming data. By default Laravel’s base controller class uses a ValidatesRequests trait which provides a convenient method to validate all incoming HTTP requests coming from a client. You can also validate data in laravel by creating Form Request.
    click here read more about data validations in Laravel.

    5. How to install laravel via composer ?

    You can install Laravel via composer by running below command.

    composer create-project laravel/laravel your-project-name version
    

    6. List some features of laravel 5.0 ?

    • Inbuilt CRSF (cross-site request forgery ) Protection.
    • Inbuilt paginations
    • Reverse Routing
    • Query builder
    • Route caching
    • Database Migration
      • IOC (Inverse of Control) Container Or service container.

        7. What is PHP artisan. List out some artisan commands ?

        PHP artisan is the command line interface/tool included with Laravel. It provides a number of helpful commands that can help you while you build your application easily. Here is the list of some artisan command:-

        • php artisan list
        • php artisan help
        • php artisan tinker
        • php artisan make
        • php artisan –versian
        • php artisan make model model_name
        • php artisan make controller controller_name

        8. List some default packages provided by Laravel 5.4 ?

        Below are list of some official/ default packages provided by Laravel 5.4

        • Cashier
        • Envoy
        • Passport
        • Scout
        • Socialite

        9. What is named routes in Laravel?

        Named routing is another amazing feature of Laravel framework. Named routes allow referring to routes when generating redirects or Url’s more comfortably.
        You can specify named routes by chaining the name method onto the route definition:

        Route::get('user/profile', function () {
            //
        })->name('profile');
        
         You can specify route names for controller actions: 
        Route::get('user/profile', 'UserController@showProfile')->name('profile');
         Once you have assigned a name to your routes, you may use the route's name when generating URLs or redirects via the global route function: 
        // Generating URLs...
        $url = route('profile');
        
        // Generating Redirects...
        return redirect()->route('profile');
        

        10. What is database migration? How to create migration via artisan ?Migrations are like version control for your database, that allows your team 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.

        Use commands to create migration data via artisan.

        // creating Migration
        php artisan make:migration create_users_table
        

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Business owners are only concerned with the success of their business. In order to run their business operations efficiently in the earlier days, when there were no computers, businessmen used to work untiringly to have better control on all the areas of the business. But in development of computer science, businessmen these days can manage their business productively than ever & that too with half efforts than what they use to give in previous days. Today software applications have impacted the business world tremendously & this effect has been totally positive. Various software applications have truly assisted the business units to grow substantially through the improvement of their operational efficiency.

Here are the 3 main advantages of software for business:

  1. Improves efficiency:

The staggering pace in which business computer software can perform tasks that were once manually done by hand has allowed a business to become more productive and focus on other important zones of the business. In this digital age, when it comes to performing tasks, productivity and quickness are fundamental to maintaining competitiveness. Today, thanks to computers and business computer software, businesses have greatly reduced the volume of paper generated. Once, offices had piles of documents on their desks and stuck away in file cabinets. Looking up information took a lot of time. Now business software enables a business to store all sorts of important business documents and spreadsheets in digital format. Such documents can include sales records, inventory lists, employee information, financial information, and much more. Digital storage of information also allows for easy and fast sharing of the information with other business departments. The outcome is a more productive business.

  1. Communicates more effectively with customers:

Using business software system furnished with all of the modern business software can prevent mistakes from being made. For instance, with the increase in customer information, it is easy to keep the information in an organized and secure digital format. As well, it is very helpful when managing customer loyalty programs. To have complete data on customers such as their likes and dislikes, a business will be better able to improve customer relations. In today’s competitive business environment, it is essential to build and maintain a strong customer base.

With business software, sales departments have instant access to customer information and purchases. With instant access to customer information, the sales team is better able to serve their customers such as tracking their orders for them. And the staff is better able to fulfill all of their customers’ needs.

  1. Streamline your business managements:

The modern business software allows businesses to run a smoother operation and provide better service to their customers. The administration is better able to control nearly every aspect of their business. With fully integrated software, managers can monitor all departments in real-time. They can also multitask such as checking sales reports, business expenses, and employee expenses, almost simultaneously. The increased use of business computer software in all types of businesses has resulted in increased efficiency and a smoother business operation. Faster information access, sharing of data, as well as better organization, is possible because of business computer software. It has made the operation of business easier and more effective. Businesses are able to deliver services with increased speed and accuracy. As well, you can get specific business computer software for your particular business’ unique needs.

Complete integration of business software within the business and its departments ensures improved productivity, efficiency, and increased profits. The modern business software is taking businesses into the future and making them more competitive which means business computer software is an essential and valuable business asset.

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