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…”