144 interview questions on PHP for developers (2025)

28 votes1780 runs1 comment

9 votes2425 runs0 comment

Théoat Mar 28, 2022

8 votes2387 runs

Théoat Mar 28, 2022

7 votes2505 runs0 comment

Théoat Mar 28, 2022

7 votes2465 runs

multidimensional

bidimensional

Théoat Mar 28, 2022

7 votes1891 runs0 comment

Théoat Mar 28, 2022

7 votes1271 runs

Anonymous authorat Jan 4, 2022

5 votes2404 runs0 comment

Théoat Mar 28, 2022

5 votes2333 runs

Théoat Mar 28, 2022

5 votes2261 runs

Théoat Mar 28, 2022

5 votes2122 runs0 comment

ternary operator

Théoat Mar 28, 2022

5 votes1677 runs0 comment

5 votes1077 runs2 comments

Anonymous authorat Aug 26, 2024

4 votes2125 runs0 comment

Théoat Mar 28, 2022

4 votes1670 runs0 comment

regular expressions

Théoat Mar 28, 2022

4 votes1178 runs2 comments

Anonymous authorat Jan 4, 2022

4 votes1166 runs2 comments

Anonymous authorat Jan 4, 2022

4 votes1164 runs

Julien Breuxat Dec 16, 2021

4 votes1088 runs0 comment

4 votes1069 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.