spqr/vendor/workerman/validation/library/Helpers/CanValidateDateTime.php
2024-11-05 12:10:06 +08:00

87 lines
2.0 KiB
PHP

<?php
/*
* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
* SPDX-License-Identifier: MIT
*/
declare(strict_types=1);
namespace Respect\Validation\Helpers;
use DateTime;
use DateTimeZone;
use function checkdate;
use function date_default_timezone_get;
use function date_parse_from_format;
use function preg_match;
/**
* Helper to handle date/time.
*
* @author Henrique Moody <henriquemoody@gmail.com>
*/
trait CanValidateDateTime
{
/**
* Finds whether a value is a valid date/time in a specific format.
*/
private function isDateTime(string $format, string $value): bool
{
$exceptionalFormats = [
'c' => 'Y-m-d\TH:i:sP',
'r' => 'D, d M Y H:i:s O',
];
$format = $exceptionalFormats[$format] ?? $format;
$info = date_parse_from_format($format, $value);
if (!$this->isDateTimeParsable($info)) {
return false;
}
if ($this->isDateFormat($format)) {
$formattedDate = DateTime::createFromFormat(
$format,
$value,
new DateTimeZone(date_default_timezone_get())
);
if ($formattedDate === false || $value !== $formattedDate->format($format)) {
return false;
}
return $this->isDateInformation($info);
}
return true;
}
/**
* @param mixed[] $info
*/
private function isDateTimeParsable(array $info): bool
{
return $info['error_count'] === 0 && $info['warning_count'] === 0;
}
private function isDateFormat(string $format): bool
{
return preg_match('/[djSFmMnYy]/', $format) > 0;
}
/**
* @param mixed[] $info
*/
private function isDateInformation(array $info): bool
{
if ($info['day']) {
return checkdate((int) $info['month'], $info['day'], (int) $info['year']);
}
return checkdate($info['month'] ?: 1, 1, $info['year'] ?: 1);
}
}