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40 lines
803 B
PHP
40 lines
803 B
PHP
<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the "LICENSE.md"
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* file that was distributed with this source code.
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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 is_nan;
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use function is_numeric;
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/**
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* Validates if the input is a number.
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*
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Ismael Elias <ismael.esq@hotmail.com>
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* @author Vitaliy <reboot.m@gmail.com>
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*/
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final class Number 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($input): bool
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{
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if (!is_numeric($input)) {
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return false;
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}
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return !is_nan((float) $input);
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}
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}
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