name : HtmlStringable.php <?php /** * This file is part of the Nette Framework (https://nette.org) * Copyright (c) 2004 David Grudl (https://davidgrudl.com) */ declare(strict_types=1); namespace Nette; interface HtmlStringable { /** * Returns string in HTML format */ function __toString(): string; } interface_exists(Utils\IHtmlString::class);