--TEST-- Check for problems with case sensitivity in compositions --FILE-- <?php error_reporting(E_ALL); trait A { public function M1() {} public function M2() {} } trait B { public function M1() {} public function M2() {} } class MyClass { use A; use B; } ?> --EXPECTF-- Fatal error: Trait method M1 has not been applied, because there are collisions with other trait methods on MyClass in %s on line %d