42 lines
985 B
PHP
42 lines
985 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 file
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* 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_string;
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use function mb_detect_encoding;
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use function mb_strtoupper;
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/**
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* Validates whether the characters in the input are uppercase.
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*
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* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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* @author Danilo Benevides <danilobenevides01@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Jean Pimentel <jeanfap@gmail.com>
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*/
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final class Uppercase 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($input): bool
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{
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if (!is_string($input)) {
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return false;
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}
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return $input === mb_strtoupper($input, (string) mb_detect_encoding($input));
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}
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}
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