Top Laravel Interview Questions and Answers

Laravel is believed to be a very adaptable application creation PHP framework. This is due in large part to the features of Laravel that include two-way binding of data as well as quick and easy transitions, unit testing integration with messaging applications, as well as many other features.

• Easy Installation
• Database Migration
• Supports MVC Architecture
• Traffic Management
• Robust Security Features
• Modular Design
• Object-Oriented Libraries
• Cloud Storage Option
• Host of Libraries

It is one of the most frequently asked questions in Laravel advanced interview questions. So, prepare yourself! The answer to this is Laravel 10 is the latest version of Laravel and was released on February 14, 2023.

Some key new features of Laravel 10 include Native PHP types, Laravel Pennant, a new process abstraction layer, and improved security. Other features include routing, caching, authentication, database migration, ORM (Eloquent), Blade templating engine, queue management, and artisan command-line interface. Laravel's new features enhance web application performance, security, and functionality.

This is another important question in Laravel interview questions for 5 years of experience. Laravel uses the Model-View-Controller (MVC) pattern, a core architectural pattern. Within Laravel, the MVC pattern is crucial in organizing code and separating distinct aspects of application logic. This separation enhances manageability and maintainability.

• Model: The Model component represents the data and encompasses its business logic.
• View: The View component presents the user interface that enables interaction with the data.
• Controller: The Controller component handles user requests, interacts with the Model to perform required actions or retrieve data, and ultimately renders the appropriate View to visualize and interact with.

By applying the MVC pattern, Laravel ensures a clear distinction between these three components, promoting a more structured and scalable development approach.

Laravel 10 supports a variety of databases, allowing developers to choose the one that best suits their project requirements. The databases supported by Laravel 10 include MySQL, PostgreSQL, MariaDB 10.3+ (Version Policy), SQLite and SQL Server.

Laravel's database layer is designed to utilize the PDO (PHP Data Objects) library, allowing it to seamlessly integrate with a wide range of databases supported by PDO. This flexibility enables developers to connect Laravel with other databases, such as Oracle, IBM DB2, etc., by configuring the database connection settings accordingly.

You can create a constants.php page in the config folder if does not exist. Now you can put a constant variable with value here and can use it with

Config::get('constants.VaribleName');

Our first step should be

DB::connection()->enableQueryLog();

After our query, it should be placed

$querieslog = DB::getQueryLog();

After that, it should be placed

dd($querieslog)

Reverse routing in the laravel means the process that is used to generate the URLs which are based on the names or symbols. URLs are being generated based on their route declarations.

With the use of reverse routing, the application becomes more flexible and provides a better interface to the developer for writing cleaner codes in the View.

Middleware in laravel works as a platform among the request and the response. It provides the mechanism for investigating the HTTP requests which are entering into your application. For instance, middleware in laravel ensures that the user of your particular application is authenticated. If they found that the user is not authenticated, it will redirect the user to the main login page of the application.

Example: If a user is not authenticated and it is trying to access the dashboard then, the middleware will redirect that user to the login page.

In Laravel, {{ $username }} and {!! $username !!} displays dynamic content within a Blade template. However, they have different behaviors depending on the context in which they are used.

{{ $username }} is used to display escaped output. This means that any special characters in the variable's value, such as HTML tags or JavaScript code, will be converted to their corresponding HTML entities to prevent them from being interpreted as code. This is done to help prevent cross-site scripting (XSS) attacks, where malicious code is injected into a web page.

{!! $username !!} is used to display unescaped output. This means the variable's value will be displayed exactly as it is, without any special characters being converted to HTML entities. This is useful when displaying HTML markup or other special characters.

However, using unescaped output can be risky, especially if the variable's value comes from user input. It can make your application vulnerable to XSS attacks. Therefore, you should always sanitize user input before displaying it on a web page and use the escaped output ({{ $variable }}) by default unless you have a good reason to use the unescaped output ({!! $variable !!}).