1--TEST-- 2array unpacking with undefined variable 3--FILE-- 4<?php 5 6var_dump([...$arr]); 7 8?> 9--EXPECTF-- 10Warning: Undefined variable $arr in %s on line %d 11 12Fatal error: Uncaught Error: Only arrays and Traversables can be unpacked in %s:%d 13Stack trace: 14#0 {main} 15 thrown in %s on line %d 16