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vendor/workerman/validation/library/Rules/In.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 function in_array;
+use function is_array;
+use function mb_stripos;
+use function mb_strpos;
+
+/**
+ * Validates if the input can be found in a defined array or string.
+ *
+ * @author Alexandre Gomes Gaigalas <alganet@gmail.com>
+ * @author Danilo Benevides <danilobenevides01@gmail.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class In extends AbstractRule
+{
+    /**
+     * @var mixed[]|mixed
+     */
+    private $haystack;
+
+    /**
+     * @var bool
+     */
+    private $compareIdentical;
+
+    /**
+     * Initializes the rule with the haystack and optionally compareIdentical flag.
+     *
+     * @param mixed[]|mixed $haystack
+     */
+    public function __construct($haystack, bool $compareIdentical = false)
+    {
+        $this->haystack = $haystack;
+        $this->compareIdentical = $compareIdentical;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if ($this->compareIdentical) {
+            return $this->validateIdentical($input);
+        }
+
+        return $this->validateEquals($input);
+    }
+
+    /**
+     * @param mixed $input
+     */
+    private function validateEquals($input): bool
+    {
+        if (is_array($this->haystack)) {
+            return in_array($input, $this->haystack);
+        }
+
+        if ($input === null || $input === '') {
+            return $input == $this->haystack;
+        }
+
+        return mb_stripos($this->haystack, (string) $input) !== false;
+    }
+
+    /**
+     * @param mixed $input
+     */
+    private function validateIdentical($input): bool
+    {
+        if (is_array($this->haystack)) {
+            return in_array($input, $this->haystack, true);
+        }
+
+        if ($input === null || $input === '') {
+            return $input === $this->haystack;
+        }
+
+        return mb_strpos($this->haystack, (string) $input) !== false;
+    }
+}