Job offersCompaniesTestsBlogI'm an employerSign upLog in
Home>IT Tests>Questions>Is this function signature valid? ```php <?php interface Demo { public function bar(): ?mixed; } ```

Question from the PHP8 test

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

Medium

Is this function signature valid?

<?php

interface Demo
{
    public function bar(): ?mixed;
}
Author: W3D TeamStatus: PublishedQuestion passed 1208 times
Edit
4
Community EvaluationsNo one has reviewed this question yet, be the first!
Similar Questions
3
Check if a value is in an array in PHP
4
Attributes are metadata that can be added to classes, properties, constants or methods.
7
PHP code that throws an error.
5
PHP function with named and positional arguments.
4
Use the match expression in PHP to print a string.
4
Which function signature is valid?
3
PHP code that throws a TypeError