1--TEST-- 2Enum implements 3--FILE-- 4<?php 5 6interface Colorful { 7 public function color(): string; 8} 9 10enum Suit implements Colorful { 11 case Hearts; 12 case Diamonds; 13 case Clubs; 14 case Spades; 15 16 public function color(): string { 17 return match ($this) { 18 self::Hearts, self::Diamonds => 'Red', 19 self::Clubs, self::Spades => 'Black', 20 }; 21 } 22} 23 24echo Suit::Hearts->color() . "\n"; 25echo Suit::Diamonds->color() . "\n"; 26echo Suit::Clubs->color() . "\n"; 27echo Suit::Spades->color() . "\n"; 28 29?> 30--EXPECT-- 31Red 32Red 33Black 34Black 35
