72 lines
1.4 KiB
PHP
72 lines
1.4 KiB
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_numeric;
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use function is_string;
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use function number_format;
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use function preg_replace;
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use function var_export;
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/**
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* Validates the decimal
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*
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* @author Henrique Moody <henriquemoody@gmail.com>
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*/
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final class Decimal extends AbstractRule
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{
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/**
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* @var int
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*/
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private $decimals;
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public function __construct(int $decimals)
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{
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$this->decimals = $decimals;
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}
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/**
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* {@inheritDoc}
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*/
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public function validate($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 $this->toFormattedString($input) === $this->toRawString($input);
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}
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/**
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* @param mixed $input
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*/
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private function toRawString($input): string
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{
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if (is_string($input)) {
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return $input;
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}
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return var_export($input, true);
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}
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/**
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* @param mixed $input
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*/
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private function toFormattedString($input): string
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{
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$formatted = number_format((float) $input, $this->decimals, '.', '');
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if (is_string($input)) {
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return $formatted;
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}
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return preg_replace('/^(\d+\.\d)0*$/', '$1', $formatted) ?: '';
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}
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}
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