# Bug report ```php strip_tags('Hello', ['a']); // Parameter #2 $allowable_tags of function strip_tags expects string, array<int, string> given. ``` See https://phpstan.org/r/3c6894fd-da88-49ab-9c27-06f60880c618 Since PHP 7.4.0 the `allowable_tags` (parameter 2) accepts an array but PHPStan doesn't understand it. https://www.php.net/strip_tags ### Expected output No error