fix php <=7.3

phpstan · Dec 21, 2022 · 37482dd · 37482dd
1 parent fb16abc
commit 37482dd
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/Type/UnionTypeHelper.php b/src/Type/UnionTypeHelper.php
@@ -70,6 +70,10 @@ public static function getConstantStrings(array $types): array
 			$strings[] = $type->getConstantStrings();
 		}
 
+        if ($strings === []) {
+            return [];
+        }
+
 		return array_merge(...$strings);
 	}