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ab3732f91f
SPDX IDs are shorter than licensing notes previously used, and adhere better to FOSS standards. It is also machine-readable.
37 lines
770 B
PHP
37 lines
770 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 is_string;
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use function mb_strtolower;
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/**
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* Validates whether the characters in the input are lowercase.
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*
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* @author Alexandre Gomes Gaigalas <alganet@gmail.com>
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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 Lowercase 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 $input === mb_strtolower($input);
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}
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}
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