1--TEST-- 2Conflicting constants in another traits in same composing classes with different values should result in a fatal error, since this indicates that the code is incompatible. 3--FILE-- 4<?php 5 6trait Trait1 { 7 public const Constant = 123; 8} 9 10trait Trait2 { 11 public const Constant = 456; 12} 13 14echo "PRE-CLASS-GUARD\n"; 15 16class TraitsTest { 17 use Trait1; 18 use Trait2; 19} 20 21echo "POST-CLASS-GUARD\n"; 22?> 23--EXPECTF-- 24PRE-CLASS-GUARD 25 26Fatal error: Trait1 and Trait2 define the same constant (Constant) in the composition of TraitsTest. However, the definition differs and is considered incompatible. Class was composed in %s on line %d 27