144 interview questions on PHP for developers (2025)

33 votes1952 runs1 comment

10 votes2588 runs0 comment

Théoat Mar 28, 2022

9 votes2632 runs

multidimensional

bidimensional

Théoat Mar 28, 2022

9 votes2546 runs

Théoat Mar 28, 2022

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Théoat Mar 28, 2022

7 votes1999 runs0 comment

Théoat Mar 28, 2022

7 votes1343 runs

Anonymous authorat Jan 4, 2022

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Théoat Mar 28, 2022

6 votes2489 runs

Théoat Mar 28, 2022

6 votes2407 runs

Théoat Mar 28, 2022

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5 votes2252 runs0 comment

ternary operator

Théoat Mar 28, 2022

5 votes1149 runs

Anonymous authorat Jan 4, 2022

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5 votes1138 runs2 comments

Anonymous authorat Aug 26, 2024

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Théoat Mar 28, 2022

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Théoat Mar 28, 2022

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regular expressions

Théoat Mar 28, 2022

4 votes1244 runs2 comments

Anonymous authorat Jan 4, 2022

4 votes1227 runs2 comments

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 ?

What type of array is the following?

Which of the following statements are true ?

What is the value of the `PHP_FLOAT_MIN` variable?

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.

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

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

Check if a value is in an array in PHP

Which function signature is valid?

PHP function with named and positional arguments.

Use array_map to get the length of each string in an array in PHP

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; } ```