Laravel Basic Interview Questions
Laravel Basic Interview Questions
Laravel is a popular open-source PHP web development framework that follows the Model-View-Controller (MVC) architectural pattern. Its ease of use, rich features, and extensive documentation make it a popular choice among developers. In an interview, the basic questions related to Laravel might include its advantages over other frameworks, its key features such as routing, middleware, and database migrations, and usage of Blade templating engine. Additionally, knowledge about key concepts like Artisan commands, Eloquent ORM, and authentication will also be tested. Overall, a good understanding of Laravel's fundamentals and its implementation in real-world projects is essential for a successful interview.
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1 - What is Laravel?
Laravel is an open source PHP web framework used for building robust and scalable web applications. It follows the Model View Controller (MVC) architectural pattern and provides a set of tools and features that simplify and speed up the development process.
2) What are the key features of Laravel?
Some of the key features of Laravel include its elegant routing system, built in authentication and authorization mechanisms, powerful templating engine with Blade, expressive database querying with Eloquent ORM, and robust error handling with the help of the built in logging system.
3) What is the blade template engine in Laravel?
Blade is the built in templating engine in Laravel that allows developers to write clean and concise templates with easy to use syntax. It provides features like template inheritance, sections, layouts, and partials, making it much easier to create dynamic and reusable views.
4) How is Laravel different from other PHP frameworks?
Laravel stands out from other PHP frameworks in terms of its elegant syntax, a large and active community, built in features such as authentication and authorization, and a comprehensive documentation.
5) What is a service container in Laravel?
The service container in Laravel is a powerful tool that manages the creation and retrieval of application objects or services. It acts as a dependency injection container, making it easier to manage dependencies and improve code readability.
6) What is the role of migrations in Laravel?
Migrations in Laravel are used to manage database changes in a structured and organized way. They allow developers to define and modify the database schema using simple PHP code, making it easier to deploy and maintain the database structure in different environments.
7) How does Laravel handle database queries?
Laravel uses an Object Relational Mapper (ORM) called Eloquent to interact with databases. It provides a fluent and expressive syntax for querying the database, making it easier to retrieve and manipulate data without writing complex SQL queries.
8) What is a facades in Laravel?
Facades in Laravel are static interfaces that provide a convenient way to access classes in the service container. They act as static proxies to underlying classes, making it easier to use and manage dependencies.
9) How does Laravel handle authentication and authorization?
Laravel provides a comprehensive authentication and authorization system out of the box. It offers features like user authentication, user level authorization, and role based access control, allowing developers to control access to different parts of the application.
10) What is artisan in Laravel?
Artisan is a command line interface (CLI) tool in Laravel that allows developers to automate repetitive tasks such as creating controllers, database migrations, and running tests. It also provides useful commands for clearing caches, optimizing performance, and managing application dependencies.
11) What is route caching in Laravel?
Route caching in Laravel is a performance optimization technique that stores all the routes defined in the application in a cached file. This reduces the time taken to register routes during the execution of the application, resulting in faster page load time.
12) How does Laravel handle error and exception handling?
Laravel provides a powerful and customizable error handling system that logs errors to various channels and enables developers to handle exceptions gracefully. It also provides a debug mode to display detailed error messages during development, making it easier to troubleshoot.
13) What are middlewares in Laravel?
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Middlewares in Laravel are HTTP request filters that allow developers to add custom logic before and after an HTTP request is processed. This can be used to perform tasks like authentication, logging, or rate limiting.
14) What is the purpose of the global helper functions in Laravel?
The global helper functions in Laravel provide shortcuts for commonly used operations such as retrieving values from the config file, accessing the application container, or performing HTTP redirects. This makes it easier to write concise and readable code.
15) How does Laravel handle caching?
Laravel provides a unified API for caching data in various storage systems such as Memcached, Redis, and file systems. It also supports popular caching libraries like APC and Xcache, making it easier to improve application performance.
16) What is the purpose of Laravel collections?
Laravel collections provide a convenient and consistent way to work with arrays of data. They come with a rich set of methods for filtering, mapping, and processing data, making it easier to manipulate and retrieve information from complex datasets.
17) What is event broadcasting in Laravel?
Event broadcasting in Laravel enables real time communication between the server and client using web sockets. It supports popular broadcasting drivers like Pusher and Socket.io, making it easier to implement real time features such as chat or notifications in the application.
18) How does Laravel handle security?
Laravel has built in security features such as protection against cross site request forgery (CSRF), SQL injection, and cross site scripting (XSS). It also offers secure cookie encryption and integration with third party security libraries to further enhance the application's security.
19) What is the Database Query Builder in Laravel?
The Database Query Builder in Laravel provides an easy and intuitive way to create and run database queries using a fluent syntax. It supports multiple database systems and provides features like joins, unions, and subqueries, making it easier to build complex queries.
20) How does Laravel support testing?
Laravel provides a testing framework that makes it easier to write and run tests for different aspects of the application such as controllers, middleware, and models. It also supports popular testing tools such as PHPUnit and Mockery, making it easier to ensure the application's quality and reliability.
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