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144 interview questions on PHPfor developers (2025)

Test your technical skills before an interview of PHP with 144 corrected questions. Beginner, Intermediate or Expert level.

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144 questions
Hard
9 votes2388 runs0 comment
Medium
8 votes2357 runs
6 comments
Medium
7 votes2470 runs0 comment
Hard
7 votes2431 runs
3 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Théoat Mar 28, 2022
Hard
7 votes1257 runs
6 comments

PHP code that throws an error.

Anonymous authorat Jan 4, 2022
Hard
5 votes2368 runs0 comment
Hard
5 votes2301 runs
1 comment
Hard
5 votes2229 runs
1 comment
Easy
5 votes2090 runs0 comment
Medium
5 votes1643 runs0 comment
Medium
5 votes1062 runs2 comments

PHP function with named and positional arguments.

Back-end developer
php
arrays
functions
Anonymous authorat Aug 26, 2024
Medium
4 votes2093 runs0 comment
Medium
4 votes1656 runs0 comment
Hard
4 votes1157 runs
1 comment
Medium
4 votes1153 runs2 comments
Easy
4 votes1056 runs0 comment
Medium
4 votes965 runs2 comments

Usage of the null coalescing operator in PHP

Back-end developer
ternary operator
null coalescing operator
Théoat Mar 28, 2022
Hard
3 votes2209 runs0 comment