1. What is PHP?

2. How do you define a variable in PHP?

3. What are PHP data types?

4. How do you create an array in PHP?

5. What is a PHP function?

6. How do you create an associative array?

7. What is a PHP class?

8. How do you handle errors in PHP?

9. How do you include files in PHP?

10. How to create a constant in PHP?

11. What is the difference between include and require?

12. How do you create a PHP session?

13. What is the use of cookies in PHP?

14. How do you redirect a page in PHP?

15. What is a PHP superglobal?

16. How do you hash a password in PHP?

17. What is the purpose of PDO in PHP?

18. How do you define a default parameter in PHP?

19. What is a closure in PHP?

20. What is the purpose of type hinting?

20. What is the purpose of type hinting in PHP?

21. What is the difference between echo and print in PHP?

22. How do you define a constant in PHP?

23. What are constructors and destructors in PHP?

24. How does inheritance work in PHP?

25. What is the purpose of interfaces in PHP?

26. What is polymorphism in PHP?

27. What is the use of abstract classes in PHP?

28. What is method overriding in PHP?

29. How do you handle exceptions in PHP?

30. What is the purpose of the final keyword in PHP?

31. What is a static method in PHP?

32. How do you connect to a MySQL database in PHP?

33. What is the difference between GET and POST in PHP?

34. What is the MVC architecture in PHP?

35. How do you execute a prepared statement in PHP?

36. What is the difference between a public, protected, and private property in PHP?

37. How do you handle file uploads in PHP?

38. How do you create a JSON response in PHP?

39. How do you define an interface in PHP?

40. What is the purpose of a dependency manager like Composer in PHP?

41. How does an if-else statement work in PHP?

42. What is the elseif statement in PHP?

43. How does the switch statement work in PHP?

44. How does a for loop work in PHP?

45. What is a foreach loop in PHP?

46. How does a while loop work in PHP?

47. How does a do-while loop work in PHP?

48. How does the break statement work in PHP?

49. What is the purpose of the continue statement in PHP?

50. How can you nest loops in PHP?

41. What are namespaces in PHP?

42. What are traits in PHP?

43. What is a closure in PHP?

44. How do you start a session in PHP?

45. How do you handle file uploads in PHP?

46. What is the purpose of Composer in PHP?

47. How do you handle JSON data in PHP?

48. How can you make a cURL request in PHP?

49. What is REST API integration in PHP?

50. How do you use prepared statements in PHP?