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vendor/workerman/validation/library/Rules/PublicDomainSuffix.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 Respect\Validation\Helpers\DomainInfo;
+
+use function array_pop;
+use function explode;
+
+final class PublicDomainSuffix extends AbstractSearcher
+{
+    /**
+     * @var string[]
+     */
+    private $domainInfo;
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDataSource($input = null): array
+    {
+        $parts = explode('.', $input);
+        $tld = array_pop($parts);
+
+        $domainInfo = new DomainInfo($tld);
+        $this->domainInfo = $domainInfo->getPublicSuffixes();
+
+        return $this->domainInfo;
+    }
+}