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vendor/workerman/validation/library/Rules/DateTime.php

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+<?php
+
+/*
+ * Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
+ * SPDX-License-Identifier: MIT
+ */
+
+declare(strict_types=1);
+
+namespace Respect\Validation\Rules;
+
+use DateTimeInterface;
+use Respect\Validation\Helpers\CanValidateDateTime;
+
+use function date;
+use function is_scalar;
+use function strtotime;
+
+/**
+ * @author Alexandre Gomes Gaigalas <alganet@gmail.com>
+ * @author Emmerson Siqueira <emmersonsiqueira@gmail.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class DateTime extends AbstractRule
+{
+    use CanValidateDateTime;
+
+    /**
+     * @var string|null
+     */
+    private $format;
+
+    /**
+     * @var string
+     */
+    private $sample;
+
+    /**
+     * Initializes the rule.
+     */
+    public function __construct(?string $format = null)
+    {
+        $this->format = $format;
+        $this->sample = date($format ?: 'c', strtotime('2005-12-30 01:02:03'));
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if ($input instanceof DateTimeInterface) {
+            return $this->format === null;
+        }
+
+        if (!is_scalar($input)) {
+            return false;
+        }
+
+        if ($this->format === null) {
+            return strtotime((string) $input) !== false;
+        }
+
+        return $this->isDateTime($this->format, (string) $input);
+    }
+}