Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>PHP8

40 interview questions on PHP8for developers (2026)

Test your technical skills before an interview of PHP8 with 40 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
3838
To review
0
40 questions
Hard
9 votes1439 runs
6 comments

PHP code that throws an error.

Back-end developer
php
errors
Anonymous authorat Jan 4, 2022
Medium
5 votes1233 runs
1 comment

Check if a value is in an array in PHP

Back-end developer
arrays
strings
Anonymous authorat Jan 4, 2022
Medium
5 votes1225 runs2 comments

PHP function with named and positional arguments.

Back-end developer
php
arrays
functions
Anonymous authorat Aug 26, 2024
Easy
5 votes1221 runs0 comment

Which function signature is valid?

Back-end developer
functions
types
Clément Devos (W3D Team)at Jan 4, 2022
Easy
4 votes1326 runs2 comments

Use the match expression in PHP to print a string.

Back-end developer
match
default
Anonymous authorat Jan 4, 2022
Medium
4 votes1316 runs2 comments

Is this function signature valid? ```php <?php interface Demo { public function bar(): ?mixed; } ```

Back-end developer
functions
interfaces
Anonymous authorat Jan 4, 2022
Medium
4 votes1219 runs0 comment

Attributes are metadata that can be added to classes, properties, constants or methods.

Back-end developer
attributes
metadata
Anonymous authorat Jan 4, 2022
Hard
4 votes1034 runs
3 comments

Write to a nullsafe property in PHP

Back-end developer
nullsafe operator
php
Anonymous authorat Oct 6, 2023
Medium
4 votes250 runs0 comment

Is the following code possible in PHP 8? ```php $name = ‘my_argument_name’; $value = 25; myFunction($name: $value); ```

Back-end developer
functions
arguments
Damienat Sep 5, 2023
Hard
3 votes1390 runs
5 comments

PHP code that throws a TypeError

Back-end developer
null
type-hinting
Anonymous authorat Mar 14, 2023
Easy
3 votes1158 runs0 comment

Write a PHP script that displays the sum of two numbers.

Back-end developer
variables
strings
Anonymous authorat Jan 4, 2022
Easy
2 votes1310 runs0 comment

Create a class Foo with a public property amount and a constructor that takes a Currency object and an integer.

Back-end developer
constructor
parameters
Anonymous authorat Jan 4, 2022
Medium
2 votes1191 runs2 comments

Is this PHP code valid?

Back-end developer
constructor
parameters
Anonymous authorat Jan 4, 2022
Easy
2 votes1170 runs0 comment

Is this class valid? ```php <?php abstract class Test{ abstract public function __construct(private $x); } ```

Back-end developer
constructor
private
Anonymous authorat Jan 4, 2022
Easy
2 votes1159 runs1 comment

What are WeakMap data structures?

Back-end developer
arrays
objects
Anonymous authorat Feb 6, 2024
Easy
2 votes1158 runs0 comment

Implement the abstract method of the Trait in the class.

Back-end developer
traits
abstract
Anonymous authorat Jan 4, 2022
Easy
2 votes1156 runs0 comment

What are the new string processing functions introduced in PHP8?

Back-end developer
functions
string
Anonymous authorat Jan 4, 2022
Medium
2 votes174 runs1 comment

How to use the `__construct()` method in PHP.

Back-end developer
constructor
errors
Amine Bouchamat Sep 5, 2022
Medium
1 vote1090 runs1 comment

Display the name of the user associated with an article in PHP

Back-end developer
null
optional
Anonymous authorat Jan 4, 2022
Easy
1 vote778 runs0 comment

Print the class name of a PHP object

Back-end developer
classes
objects
Anonymous authorat Jan 4, 2022