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 votes2060 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 votes2699 runs0 comment

Which of the following statements are true ?

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
10 votes2737 runs
3 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Anonymous authorat Mar 28, 2022
Medium
9 votes2783 runs0 comment

What is the value of the `PHP_FLOAT_MIN` variable?

Back-end developer
constants
float
Anonymous authorat Mar 28, 2022
Medium
8 votes2650 runs
8 comments

Which of the following statements are true ?

Back-end developer
php
arrays
Anonymous authorat Mar 28, 2022
Hard
7 votes2665 runs0 comment

What are the risks when running the following code ?

Back-end developer
security
xss
Anonymous authorat Mar 28, 2022
Medium
7 votes2059 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 votes2588 runs
1 comment

Usage of the global scope in a PHP function.

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
6 votes2502 runs
1 comment

Usage of the spaceship operator in a PHP loop.

Back-end developer
comparison
operators
Anonymous authorat Mar 28, 2022
Medium
6 votes1909 runs0 comment

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

Back-end developer
arrays
functions
Nick LAM YEE MANat Mar 28, 2023
Medium
5 votes2341 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 votes2397 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 votes2355 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 votes1768 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 votes1041 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 votes2486 runs0 comment

What is the `is_long()` function for ?

Back-end developer
functions
integers
Anonymous authorat Mar 28, 2022
Medium
3 votes1458 runs0 comment

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

Back-end developer
arrays
php
Anonymous authorat Mar 28, 2022
Hard
3 votes347 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 votes2315 runs1 comment

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

Back-end developer
constants
functions
Anonymous authorat Mar 28, 2022
Easy
2 votes1574 runs0 comment

Pass by reference in PHP

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