37 lines
721 B
PHP
37 lines
721 B
PHP
<?php
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/*
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* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
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* SPDX-License-Identifier: MIT
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*/
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declare(strict_types=1);
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namespace Respect\Validation\Rules;
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use function filter_var;
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use const FILTER_VALIDATE_INT;
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/**
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* Validates whether the input is an even number or not.
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*
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Jean Pimentel <jeanfap@gmail.com>
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* @author Paul Karikari <paulkarikari1@gmail.com>
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*/
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final class Even extends AbstractRule
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{
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/**
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* {@inheritDoc}
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*/
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public function validate($input): bool
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{
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if (filter_var($input, FILTER_VALIDATE_INT) === false) {
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return false;
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}
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return (int) $input % 2 === 0;
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}
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}
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