1--TEST-- 2Ensure callback methods in unknown classes trigger autoload. 3--FILE-- 4<?php 5spl_autoload_register(function ($name) { 6 echo "In autoload: "; 7 var_dump($name); 8}); 9call_user_func("UndefC::test"); 10?> 11--EXPECTF-- 12In autoload: string(6) "UndefC" 13 14Warning: call_user_func() expects parameter 1 to be a valid callback, class 'UndefC' not found in %s on line %d 15