54 lines
1.2 KiB
PHP
54 lines
1.2 KiB
PHP
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<?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 Respect\Validation\Exceptions\ComponentException;
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use Respect\Validation\Validatable;
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use function array_key_exists;
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use function is_array;
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use function is_scalar;
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/**
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* @author Alexandre Gomes Gaigalas <alganet@gmail.com>
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* @author Emmerson Siqueira <emmersonsiqueira@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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*/
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final class Key extends AbstractRelated
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{
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/**
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* @param mixed $reference
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*/
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public function __construct($reference, ?Validatable $rule = null, bool $mandatory = true)
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{
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if (!is_scalar($reference) || $reference === '') {
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throw new ComponentException('Invalid array key name');
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}
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parent::__construct($reference, $rule, $mandatory);
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}
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/**
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* {@inheritDoc}
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*/
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public function getReferenceValue($input)
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{
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return $input[$this->getReference()];
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}
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/**
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* {@inheritDoc}
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*/
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public function hasReference($input): bool
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{
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return is_array($input) && array_key_exists($this->getReference(), $input);
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}
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}
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