1--TEST-- 2Aliasing leading to conflict should result in error message 3--FILE-- 4<?php 5error_reporting(E_ALL); 6 7trait Hello { 8 public function hello() { 9 echo 'Hello'; 10 } 11} 12 13trait World { 14 public function world() { 15 echo ' World!'; 16 } 17} 18 19 20class MyClass { 21 use Hello, World { hello as world; } 22} 23 24$o = new MyClass(); 25$o->hello(); 26$o->world(); 27 28?> 29--EXPECTF-- 30Fatal error: Trait method world has not been applied, because there are collisions with other trait methods on MyClass in %s on line %d 31