Traits
Enumerations may leverage traits, which will behave the same as on classes.
The caveat is that traits use
d in an enum must not contain properties.
They may only include methods and static methods. A trait with properties will
result in a fatal error.
<?php
interface Colorful
{
public function color(): string;
}
trait Rectangle
{
public function shape(): string {
return "Rectangle";
}
}
enum Suit implements Colorful
{
use Rectangle;
case Hearts;
case Diamonds;
case Clubs;
case Spades;
public function color(): string
{
return match($this) {
Suit::Hearts, Suit::Diamonds => 'Red',
Suit::Clubs, Suit::Spades => 'Black',
};
}
}
?>