1--TEST-- 2Enum cannot have properties, even via traits 3--FILE-- 4<?php 5 6trait Rectangle { 7 protected string $shape = "Rectangle"; 8 9 public function shape(): string { 10 return $this->shape; 11 } 12} 13 14enum Suit { 15 use Rectangle; 16 17 case Hearts; 18 case Diamonds; 19 case Clubs; 20 case Spades; 21} 22 23?> 24--EXPECTF-- 25Fatal error: Enum "Suit" may not include properties in %s on line %d 26