Question Interview PHP, Laravel, Symfony

Core PHP Questions

1. Explain the differences between include(), require(), include_once(), and require_once() in PHP. When would you use each?
2. How do you manage error handling in PHP? Can you explain the difference between exceptions and errors?
3. What are PHP's autoloading mechanisms, and how do they help in managing large applications?
4. What is the difference between == and === in PHP? Why would you prefer one over the other?
5. How does PHP manage sessions? What are some best practices for session handling in PHP?
6. Explain how the garbage collection mechanism works in PHP. How does it handle circular references?
7. What is the __invoke() method in PHP, and how is it used?
8. How would you secure a PHP application against common vulnerabilities like SQL injection, XSS, and CSRF?

Object-Oriented PHP

1. Explain the concept of namespaces in PHP. Why are they important?
2. Can you describe the SOLID principles and give examples of how you've applied them in PHP?
3. Explain the difference between traits and interfaces in PHP. When would you use one over the other?
4. What is the Singleton pattern, and how would you implement it in PHP?
5. How does PHP handle late static binding? Provide an example.
6. Can you explain dependency injection and how it can be implemented in a PHP application?
7. What is the difference between overloading and overriding methods in PHP?

Laravel-Specific Questions

1. What is the service container in Laravel, and how does it handle dependency injection?
2. How does Laravel's Eloquent ORM differ from traditional SQL queries? What are some common pitfalls when using Eloquent?
3. Explain the differences between jobs, queues, and events in Laravel. How have you used them in your projects?
4. What are some ways you can optimize a Laravel application for performance?
5. **How do middleware and service providers work in Laravel? Can you
   

Advanced PHP & Performance

1. How does PHP handle memory management, and what techniques would you use to optimize memory usage in a long-running PHP script?
2. What are generators in PHP, and how do they differ from arrays? Provide a use case where generators improve performance.
3. How do you handle and optimize database interactions in PHP, especially when working with large datasets?
4. What caching mechanisms are available in PHP (e.g., OPCache, Memcached, Redis), and how would you implement them to improve performance?
5. How would you debug a memory leak in a PHP application?
6. How do you manage and log errors in a large-scale PHP application, ensuring efficient debugging without revealing sensitive information?

 Thank you