n4aa.md

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PHP: Fundamentals

Set A

1. a) <?php
2. c) PHP: Hypertext Preprocessor
3. a) echo
4. a) Using the assignment operator (=)
5. a) With a semicolon (;)
6. a) .
7. a) //
8. a) strlen()
9. a) 15
10. a) $fruits = array("Apple", "Banana", "Orange");
11. a) By using square brackets [] and the index number
12. b) Odd
13. a) include()
14. a) define("PI", 3.14);
15. a) session_start()
16. a) $_GET["param"]
17. d) $_COOKIE
18. a) header("Location: newpage.php");
19. b) 510
20. a) mysqli_connect()
21. a) To prevent SQL injection attacks
22. a) mysqli_num_rows()
23. a) mysqli_close()
24. a) It's a fruit.
25. a) Using try...catch blocks
26. c) To initialize the object's properties and perform setup tasks
27. a) $object = new ClassName();
28. a) Hello, John
29. a) By using the :: operator
30. a) It allows access to the property or method from anywhere
31. c) 15
32. c) Using the fgets() function
33. a) To check if a file or directory exists
34. a) 5
35. a) trim()
36. b) 11
37. a) To iterate over elements in an array or collection
38. a) empty()
39. b) Hello PHP
40. d) To add elements to the end of an array
41. b) 15
42. a) To split a string into an array
43. b) 9
44. b) To format a date and time string
45. a) Adult
46. a) To set HTTP headers for the response
47. a) 5
48. a) To convert a PHP array or object into a JSON string
49. a) Color found!
50. a) To filter and sanitize user input data

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