InApp Information Technologies Interview Questions, Process, and Tips

Composer is a dependency manager for PHP.

• Composer is used to manage dependencies in PHP projects.

• It allows you to easily install and update libraries and packages.

• Composer uses a file called 'composer.json' to define project dependencies.

• It also creates a 'vendor' directory to store installed packages.

• Composer is widely used in PHP development and is considered a standard tool.

Migration in Laravel is used to manage database schema changes.

• Migration allows developers to modify database schema using PHP code instead of SQL.

• It helps in version control of database schema and makes it easy to roll back changes.

• Migration also allows for easy deployment of database changes across different environments.

• Laravel provides a command-line interface for creating and running migrations.

• Example: Creating a...read more

Middleware is software that connects different software applications or components.

• Middleware acts as a bridge between different software components

• It enables communication and data exchange between different applications

• Examples include message queues, API gateways, and ESBs

Dependency injection in Laravel is done through constructor or method injection.

• Use constructor injection for dependencies that are required for the entire class

• Use method injection for dependencies that are only required for specific methods

• Bind the dependency to the container using the bind method

• Use the dependency by type hinting the interface or class in the constructor or method

• Example: public function __construct

Middlewares are software components that sit between the application and the server, providing additional functionality.

• Middlewares are used to handle common tasks such as authentication, logging, and caching.

• They can be added to the application pipeline to modify the request and response objects.

• Examples include Express.js middleware, Laravel middleware, and Symfony middleware.