144 interview questions on PHP for developers (2025)

29 votes1807 runs1 comment

9 votes2451 runs0 comment

Théoat Mar 28, 2022

8 votes2413 runs

Théoat Mar 28, 2022

7 votes2531 runs0 comment

Théoat Mar 28, 2022

7 votes2492 runs

multidimensional

bidimensional

Théoat Mar 28, 2022

7 votes1909 runs0 comment

Théoat Mar 28, 2022

7 votes1289 runs

Anonymous authorat Jan 4, 2022

5 votes2430 runs0 comment

Théoat Mar 28, 2022

5 votes2358 runs

Théoat Mar 28, 2022

5 votes2285 runs

Théoat Mar 28, 2022

5 votes2142 runs0 comment

ternary operator

Théoat Mar 28, 2022

5 votes1699 runs0 comment

5 votes1093 runs2 comments

Anonymous authorat Aug 26, 2024

4 votes2148 runs0 comment

Théoat Mar 28, 2022

4 votes1680 runs0 comment

regular expressions

Théoat Mar 28, 2022

4 votes1195 runs2 comments

Anonymous authorat Jan 4, 2022

4 votes1181 runs2 comments

Anonymous authorat Jan 4, 2022

4 votes1167 runs

Julien Breuxat Dec 16, 2021

4 votes1101 runs0 comment

4 votes1083 runs0 comment

Anonymous authorat Jan 4, 2022

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.

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.

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

Which of the following statements are true ?

Which of the following statements are true ?

What is the value of the `PHP_FLOAT_MIN` variable?

What type of array is the following?

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

PHP code that throws an error.

What are the risks when running the following code ?

Usage of the global scope in a PHP function.

Usage of the spaceship operator in a PHP loop.

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

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

PHP function with named and positional arguments.

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

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

Use the match expression in PHP to print a string.

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

Which of these PHP code snippets are valid?

Which function signature is valid?

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