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48 interview questionsfor developers (2024)

Test your developer skills before an interview with 48 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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48 questions
Easy
16 votes945 runs0 comment

Explain the difference between the `include` and `require` functions in PHP.

Back-end developer
functions
errors
Vincent Cotroat Mar 24, 2023
Hard
5 votes1587 runs2 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Théoat Mar 28, 2022
Hard
4 votes1556 runs0 comment

Which of the following statements are true ?

Back-end developer
functions
variables
Théoat Mar 28, 2022
Medium
3 votes1651 runs0 comment

What is the value of the `PHP_FLOAT_MIN` variable?

Back-end developer
constants
float
Théoat Mar 28, 2022
Medium
3 votes1578 runs1 comment

Which of the following statements are true ?

Back-end developer
php
arrays
Théoat Mar 28, 2022
Medium
3 votes1408 runs0 comment

Write a PHP class with a constant and a public method that outputs the constant.

Back-end developer
constants
classes
Théoat Mar 28, 2022
Medium
3 votes940 runs0 comment

What is the `asort()` function for in PHP ?

Back-end developer
arrays
functions
Nick LAM YEE MANat Mar 28, 2023
Medium
2 votes1453 runs0 comment

What is the `is_long()` function for ?

Back-end developer
functions
integers
Théoat Mar 28, 2022
Medium
2 votes1407 runs0 comment

Write a PHP function that adds two numbers and returns an integer.

Back-end developer
functions
types
Théoat Mar 28, 2022
Medium
2 votes1349 runs0 comment

How to count the number of occurences of a pattern in a string in PHP

Back-end developer
functions
regular expressions
Théoat Mar 28, 2022
Medium
2 votes740 runs2 comments

Usage of the null coalescing operator in PHP

Back-end developer
ternary operator
null coalescing operator
Théoat Mar 28, 2022
Hard
1 vote1548 runs0 comment

What are the risks when running the following code ?

Back-end developer
security
xss
Théoat Mar 28, 2022
Hard
1 vote1505 runs0 comment

Usage of the global scope in a PHP function.

Back-end developer
functions
variables
Théoat Mar 28, 2022
Medium
1 vote1472 runs0 comment

Usage of the spaceship operator in a PHP loop.

Back-end developer
comparison
operators
Théoat Mar 28, 2022
Medium
1 vote1437 runs0 comment

Use array_map to get the length of each string in an array in PHP

Back-end developer
arrays
functions
Théoat Mar 28, 2022
Easy
1 vote1417 runs0 comment

Using the ternary operator to choose between two strings in PHP.

Back-end developer
ternary operator
strings
Théoat Mar 28, 2022
Easy
1 vote1265 runs0 comment

Pass by reference in PHP

Back-end developer
functions
references
Théoat Mar 28, 2022
Hard
1 vote1087 runs0 comment

What is the difference between $_GET and $_POST in PHP?

Back-end developer
arrays
php
Théoat Mar 28, 2022
Medium
1 vote514 runs0 comment

How to get the value of a key in a JSON object in PHP

Back-end developer
json
php
Théoat Mar 28, 2022
Hard
1 vote48 runs0 comment

Which answer(s) can determine if `$a` is of type `MyPHPClass` or not ?

Back-end developer
Williamat Feb 29, 2024