Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>PHP - Fundamentals

48 interview questions on PHP - Fundamentalsfor developers (2025)

Test your technical skills before an interview of PHP - Fundamentals with 48 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
3812
To review
26
48 questions
Easy
34 votes2047 runs1 comment

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

Back-end developer
functions
errors
Vincent Cotroat Mar 24, 2023
Hard
11 votes2687 runs0 comment

Which of the following statements are true ?

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
10 votes2726 runs
3 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Anonymous authorat Mar 28, 2022
Medium
9 votes2769 runs0 comment

What is the value of the `PHP_FLOAT_MIN` variable?

Back-end developer
constants
float
Anonymous authorat Mar 28, 2022
Medium
8 votes2637 runs
8 comments

Which of the following statements are true ?

Back-end developer
php
arrays
Anonymous authorat Mar 28, 2022
Hard
7 votes2654 runs0 comment

What are the risks when running the following code ?

Back-end developer
security
xss
Anonymous authorat Mar 28, 2022
Medium
7 votes2052 runs0 comment

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

Back-end developer
constants
classes
Anonymous authorat Mar 28, 2022
Hard
6 votes2577 runs
1 comment

Usage of the global scope in a PHP function.

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
6 votes2491 runs
1 comment

Usage of the spaceship operator in a PHP loop.

Back-end developer
comparison
operators
Anonymous authorat Mar 28, 2022
Medium
6 votes1898 runs0 comment

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

Back-end developer
arrays
functions
Nick LAM YEE MANat Mar 28, 2023
Easy
5 votes2331 runs0 comment

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

Back-end developer
ternary operator
strings
Anonymous authorat Mar 28, 2022
Medium
4 votes2386 runs0 comment

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

Back-end developer
arrays
functions
Anonymous authorat Mar 28, 2022
Medium
4 votes2345 runs0 comment

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

Back-end developer
functions
types
Anonymous authorat Mar 28, 2022
Medium
4 votes1766 runs0 comment

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

Back-end developer
functions
regular expressions
Anonymous authorat Mar 28, 2022
Medium
4 votes1040 runs2 comments

Usage of the null coalescing operator in PHP

Back-end developer
ternary operator
null coalescing operator
Anonymous authorat Mar 28, 2022
Hard
3 votes2475 runs0 comment

What is the `is_long()` function for ?

Back-end developer
functions
integers
Anonymous authorat Mar 28, 2022
Medium
3 votes1457 runs0 comment

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

Back-end developer
arrays
php
Anonymous authorat Mar 28, 2022
Hard
3 votes345 runs0 comment

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

Back-end developer
William Meadat Feb 29, 2024
Easy
2 votes2305 runs1 comment

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

Back-end developer
constants
functions
Anonymous authorat Mar 28, 2022
Easy
2 votes1573 runs0 comment

Pass by reference in PHP

Back-end developer
functions
references
Anonymous authorat Mar 28, 2022