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

1. How do you check if a string starts with a specific substring in PHP?

str_starts($string, $substring)

starts_with($string, $substring)

substr($string, 0, strlen($substring)) == $substring

strpos($string, $substring) === 0

2. 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

3. How can you implement lazy loading in PHP?

By using the `lazy_load()` function

By delaying the instantiation of an object until it is actually needed

By using the `autoload` feature

Lazy loading is not possible in PHP

4. What is the purpose of the `array` keyword in PHP?

To create a function

To define a loop

To declare an array

To include external files

5. 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

6. What is the correct way to define a variable in PHP?

$variable = value

variable = $value

set variable $value

define variable value

7. In PHP, what does the `use` keyword do in anonymous functions?

To import a namespace

To define a closure

To declare a variable

To import variables from the parent scope

8. 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

9. What is the purpose of the `else` statement in PHP?

To start a new block of code

To end a conditional statement

To execute code when the `if` condition is false

To include external files

10. 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

11. How do you connect to a MySQL database using PDO in PHP?

$pdo = new PDO('mysql:host=localhost;dbname=mydb', 'username', 'password');

$pdo = connect_mysql('localhost', 'username', 'password', 'mydb');

$pdo = create_pdo('localhost', 'username', 'password', 'mydb');

$pdo = pdo_connect('localhost', 'username', 'password', 'mydb');

12. What is the purpose of the `__callStatic()` magic method in PHP?

To call a non-static method

To call a static method

To define a static method

To create a new instance of a class

13. What does PHP stand for?

Hypertext Preprocessor

Hypertext Programming

Hypertext Processor

Hypertext Preprogramming

14. How do you check if a variable is empty in PHP?

empty()

is_empty()

is_null()

null()

15. 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

16. What is the difference between `==` and `===` operators in PHP?

Both are used for equality comparison

`==` compares values and ignores data types, `===` compares both values and data types

`===` compares values and ignores data types, `==` compares both values and data types

`==` is used for strict comparison, `===` is used for loose comparison

17. What is the purpose of the `array_diff()` function in PHP?

To find the difference between two arrays

To merge two arrays

To sort an array

To filter an array

18. 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

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

redirect()

header()

location()

go()

20. What is the correct way to include a comment block in PHP?

/* This is a comment */

# This is a comment #

' This is a comment

PHP MCQ Test 4