Easy
Which function signature is valid?
function bar1(Foo|null $param): void {
}
function bar2(?Foo $param): void {
}
Author: Clément DevosStatus: PublishedQuestion passed 1216 times
Edit
5
Community EvaluationsNo one has reviewed this question yet, be the first!
5
PHP function with named and positional arguments.9
PHP code that throws an error.4
Attributes are metadata that can be added to classes, properties, constants or methods.4
Use the match expression in PHP to print a string.5
Check if a value is in an array in PHP4
Write to a nullsafe property in PHP4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```