Super Php Test - 86+ MCQs: PHP test: Evaluate Your Programming Skills with PHP Questions and Answers

1. What is the purpose of the `__invoke()` magic method in PHP?

To call an object as a function

To define a new class

To create a new instance of a class

To destroy an object

2. In PHP, what is the use of the `unset()` function?

To destroy a session

To remove a variable

To delete a file

To uninstall a package

3. What is the purpose of the `glob()` function in PHP?

To create a global variable

To retrieve an array of file names that match a pattern

To generate a random number

To define a global function

4. What does the `static` keyword do in PHP?

Defines a constant

Declares a variable as static

Marks a method as final

Indicates a variable is private

5. What is the purpose of the `array_push()` function in PHP?

To pop an element from an array

To push an element to the end of an array

To insert an element at the beginning of an array

To remove all elements from an array

6. What is the purpose of the magic constant `__DIR__` in PHP?

To get the parent directory of the current file

To get the absolute path of the current directory

To define a new directory

To check if a directory exists

7. What is the purpose of the `opcache_get_configuration()` function in PHP?

To get the configuration settings of the OPCache

To clear the OPCache

To enable the OPCache

To disable the OPCache

8. Which of the following is a correct way to include a file in PHP?

include_file('filename')

require('filename')

import('filename')

include('filename')

9. How can you check if a variable is an array in PHP?

Use the `isarray()` function

Use the `isArray()` function

Use the `typeof` operator

Use the `is_array()` function

10. What is the purpose of the `switch` statement in PHP?

To create a loop

To make decisions based on conditions

To define a function

To simplify complex `if` conditions

11. What is the purpose of the function `mysqli_connect()`?

To connect to a MySQL database

To connect to a SQLite database

To connect to a MongoDB database

To connect to a PostgreSQL database

12. How can you handle file uploads in PHP securely?

Check the file extension

Check the file size

Use the `move_uploaded_file()` function

All of the above

13. Which PHP function is used to redirect the browser to another location?

redirect()

header()

location()

go()

14. What is the purpose of the `session_regenerate_id()` function in PHP?

To start a new session

To destroy a session

To regenerate the session ID

To retrieve session data

15. What is the use of the `filter_var()` function in PHP?

To filter array elements

To validate and sanitize data

To extract values from an array

To sort an array

16. How do you include a trait in a PHP class?

Using the `implements` keyword

Using the `use` keyword

Using the `extends` keyword

Using the `trait` keyword

17. Which function is used to redirect the browser to another location in PHP?

redirect()

header()

location()

go()

18. What is the purpose of the `json_encode()` function in PHP?

To decode a JSON string

To encode a PHP array into a JSON string

To check if a string is valid JSON

To compress a JSON file

19. What is the purpose of the `continue` statement in PHP?

To end a loop prematurely

To start a new block of code

To skip the rest of the code in a loop and start the next iteration

To include external files

20. What is the purpose of the `header('Content-Type: application/json')` function in PHP?

To set the page title

To send a JSON response

To redirect the page

To include an external script

21. What is the purpose of the `hash_pbkdf2()` function in PHP?

To generate a hash using PBKDF2

To verify a password using PBKDF2

To encrypt data using PBKDF2

To decrypt data using PBKDF2

22. How do you handle file uploads in PHP?

Use the `upload_file()` function

Access the file using $_FILES superglobal

Use the `move_uploaded_file()` function

Enable file uploads in php.ini

23. What is the purpose of the `while` loop in PHP?

To create an infinite loop

To iterate over items in an array or collection

To perform a conditional loop

To define a function

24. How do you comment out a single line in PHP?

// This is a comment

# This is a comment

-- This is a comment

/* This is a comment */

25. What is the purpose of the `FILTER_VALIDATE_EMAIL` filter in PHP?

To validate email addresses

To filter and sanitize email addresses

To validate and sanitize email addresses

To filter email addresses

26. How can you prevent a PHP script from timing out?

Increase the `max_execution_time` directive in php.ini

Use the `set_time_limit()` function

Both A and B

There is no way to prevent script timeouts

27. How do you perform a case-insensitive string comparison in PHP?

strcasecmp()

str_compare()

string_compare()

case_compare()

28. What is the purpose of the `array_map()` function in PHP?

To merge two arrays

To apply a function to all items in an input array

To filter items in an array

To check if an array is empty

29. What is the purpose of the `__construct()` method in a PHP class?

To create an instance of the class

To initialize class properties

To define a destructor

To access static members

30. How do you comment out a single line in PHP?

// This is a comment

# This is a comment

-- This is a comment

/* This is a comment */

PHP MCQ Test 3