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

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+<?php
+
+/*
+ * This file is part of Respect/Validation.
+ *
+ * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ *
+ * For the full copyright and license information, please view the LICENSE file
+ * that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Respect\Validation\Rules;
+
+use SplFileInfo;
+
+use function is_string;
+use function is_writable;
+
+/**
+ * Validates if the given input is writable file.
+ *
+ * @author Danilo Correa <danilosilva87@gmail.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class Writable extends AbstractRule
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if ($input instanceof SplFileInfo) {
+            return $input->isWritable();
+        }
+
+        return is_string($input) && is_writable($input);
+    }
+}