1. Tell me about yourself

👉 Keep it structured: Present + Skills + Goal

Answer:
“I am Aditya Kumar Singh, working on web development with a strong focus on PHP and OOP. I run SOA Technology where I build real-world projects like AI tools and web applications. I enjoy solving problems and building scalable systems. Currently, I am improving my backend architecture skills and aiming to work on larger production-level applications.”

2. Why should we hire you?

Answer:
“I have practical experience building real projects, not just theory. I understand OOP, MVC, and backend logic, and I focus on writing clean and maintainable code. I can quickly adapt and contribute to real-world projects.”

3. What are your strengths?

Answer:

Problem-solving
Fast learning
Real project experience

4. What are your weaknesses?

Answer (safe & smart):
“Sometimes I spend extra time optimizing code, but I’m learning to balance optimization with deadlines.”

5. Why do you want this job?

Answer:
“I want to work in a professional environment where I can apply my PHP and OOP knowledge to real systems and grow by working with experienced developers.”

6. Where do you see yourself in 5 years?

Answer:
“I see myself as a senior developer or backend architect, working on scalable systems and possibly leading a team.”

7. Describe a challenge you faced

Answer:
“While building a project, I faced issues with routing and structure. I solved it by learning MVC architecture and restructuring my code, which improved performance and maintainability.”

💻 Technical Interview Questions (PHP + OOP)

🟢 Basic

1. Difference between echo and print

echo → faster, no return
print → returns 1

2. GET vs POST

GET	POST
Visible in URL	Hidden
Less secure	More secure
Limited data	Large data

3. What is session?

Used to store user data across pages.

🟡 OOP Focus

4. What is OOP?

Programming using objects and classes to improve structure and reuse.

5. Explain encapsulation with example

class User {
    private $password;    public function setPassword($p) {
        $this->password = password_hash($p, PASSWORD_DEFAULT);
    }
}

6. What is inheritance?

Reuse code from parent class.

7. What is polymorphism?

Same method behaves differently.

8. Interface vs Abstract (very common)

Already asked in almost every interview.

🔵 Advanced

9. How do you connect PHP with database?

Using PDO or MySQLi

10. What is PDO?

Secure
Prevents SQL injection
Supports multiple DB

11. How to prevent SQL injection?

Prepared statements (PDO)

12. What is MVC?

Model → database
View → UI
Controller → logic

13. What is REST API?

Communication between frontend & backend using JSON.

14. What is dependency injection?

Passing objects instead of creating inside class.

🔴 Real Coding Questions

15. Reverse a string

echo strrev("hello");

16. Check palindrome

$str = "madam";
if ($str == strrev($str)) echo "Palindrome";

17. Find largest number in array

echo max([1,5,9,2]);

18. Simple login logic

if ($user == $dbUser && password_verify($pass, $hash)) {
    echo "Login success";
}

🚀 Final Interview Tips (Very Important)

✔ Speak confidently
✔ Give real examples (your projects)
✔ Mention:

MVC
Security (hashing, PDO)
Clean code

✔ Don’t say “I don’t know” → say:
👉 “I haven’t used it much, but I understand the concept…”

🇮🇳 Amazon India 🌍 Amazon Global

HR Interview Questions (with strong answers)