mb_convert_encoding-can-return-false

Author: jack-worman

Diff for: tests/PHPStan/Analyser/nsrt/mb_convert_encoding.php

@@ -15,7 +15,7 @@ function test_mb_convert_encoding(
 	array $stringList,
 	array $intList,
 ): void {
-	\PHPStan\Testing\assertType('array|string|false', mb_convert_encoding($mixed, 'UTF-8'));
+	\PHPStan\Testing\assertType('array<array<bool|float|int|string|null>|bool|float|int|string|null>|string|false', mb_convert_encoding($mixed, 'UTF-8'));
 	\PHPStan\Testing\assertType('string|false', mb_convert_encoding($string, 'UTF-8'));
 	\PHPStan\Testing\assertType('array|false', mb_convert_encoding($mixedArray, 'UTF-8'));
 	\PHPStan\Testing\assertType('array{foo: string, bar: int}|false', mb_convert_encoding($structuredArray, 'UTF-8'));