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<?php /* * This file is part of Respect/Validation. * * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net> * * For the full copyright and license information, please view the LICENSE file * that was distributed with this source code. */ declare(strict_types=1); namespace Respect\Validation\Rules; use function filter_var; use function is_bool; use const FILTER_NULL_ON_FAILURE; use const FILTER_VALIDATE_BOOLEAN; /** * Validates if the input results in a boolean value. * * @author Emmerson Siqueira <emmersonsiqueira@gmail.com> * @author Henrique Moody <henriquemoody@gmail.com> * @author William Espindola <oi@williamespindola.com.br> */ final class BoolVal extends AbstractRule { /** * {@inheritDoc} */ public function validate($input): bool { return is_bool(filter_var($input, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE)); } }