Phalcon Interview Questions and Answers for 2 years experience

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100 Phalcon Interview Questions & Answers (2 Years Experience)

  1. What is Phalcon?

    • Answer: Phalcon is a full-stack PHP framework delivered as a C extension. This means it's compiled into your server, resulting in significantly improved performance compared to other PHP frameworks that are interpreted.

  2. What are the advantages of using Phalcon?

    • Answer: Phalcon offers high performance due to its C extension nature, low resource consumption, a clean MVC architecture, and a rich set of built-in components.

  3. What are the disadvantages of using Phalcon?

    • Answer: The main disadvantage is the need to compile the extension, which can be challenging on some shared hosting environments. The smaller community compared to Laravel or Symfony can also mean fewer readily available resources and extensions.

  4. Explain the MVC architecture in Phalcon.

    • Answer: Phalcon implements the Model-View-Controller pattern. Models handle data interactions, Views generate the user interface, and Controllers manage the application logic and routing.

  5. How do you handle database interactions in Phalcon?

    • Answer: Phalcon's ORM (Object-Relational Mapper) provides an easy way to interact with databases. You define models that map to database tables, and use methods like `find()`, `findFirst()`, `save()`, and `delete()` to manipulate data.

  6. Explain the role of Phalcon's DI container.

    • Answer: The Dependency Injection container manages object creation and dependencies. It simplifies the process of injecting services and dependencies into your application components, promoting loose coupling and testability.

  7. How do you handle routing in Phalcon?

    • Answer: Routing maps URLs to specific controllers and actions. You can define routes using the `Phalcon\Mvc\Router` component, either programmatically or through configuration files.

  8. What are events in Phalcon and how are they used?

    • Answer: Events allow you to hook into different stages of the request lifecycle. You can listen for events like 'dispatch', 'beforeExecuteRoute', and 'afterExecuteRoute' to modify behavior or perform actions before or after specific parts of the request processing.

  9. Explain the use of Phalcon's Volt templating engine.

    • Answer: Volt is Phalcon's built-in templating engine. It allows you to create reusable templates with simple syntax, including variables, loops, and conditional statements. It compiles templates to optimized PHP code for improved performance.

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