1--TEST-- 2Match expression with undefined variable as expression 3--FILE-- 4<?php 5 6var_dump(match ($undefinedVariable) { 7 null => 'null', 8 default => 'default', 9}); 10 11var_dump(match ($undefinedVariable) { 12 1, 2, 3, 4, 5 => 'foo', 13 default => 'bar', 14}); 15 16?> 17--EXPECTF-- 18Warning: Undefined variable $undefinedVariable in %s.php on line 3 19string(4) "null" 20 21Warning: Undefined variable $undefinedVariable in %s.php on line 8 22string(3) "bar" 23