1--TEST-- 2Argument unpacking does not work with string keys (forward compatibility for named args) 3--FILE-- 4<?php 5 6set_error_handler(function($errno, $errstr) { 7 var_dump($errstr); 8}); 9 10try { 11 var_dump(...[1, 2, "foo" => 3, 4]); 12} catch (Error $ex) { 13 var_dump($ex->getMessage()); 14} 15try { 16 var_dump(...new ArrayIterator([1, 2, "foo" => 3, 4])); 17} catch (Error $ex) { 18 var_dump($ex->getMessage()); 19} 20 21?> 22--EXPECT-- 23string(36) "Cannot unpack array with string keys" 24string(42) "Cannot unpack Traversable with string keys" 25