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vendor/workerman/validation/library/Rules/Contains.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 function in_array;
+use function is_array;
+use function is_scalar;
+use function mb_detect_encoding;
+use function mb_stripos;
+use function mb_strpos;
+
+/**
+ * Validates if the input contains some value.
+ *
+ * @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ * @author Marcelo Araujo <msaraujo@php.net>
+ * @author William Espindola <oi@williamespindola.com.br>
+ */
+final class Contains extends AbstractRule
+{
+    /**
+     * @var mixed
+     */
+    private $containsValue;
+
+    /**
+     * @var bool
+     */
+    private $identical;
+
+    /**
+     * Initializes the Contains rule.
+     *
+     * @param mixed $containsValue Value that will be sought
+     * @param bool $identical Defines whether the value is identical, default is false
+     */
+    public function __construct($containsValue, bool $identical = false)
+    {
+        $this->containsValue = $containsValue;
+        $this->identical = $identical;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if (is_array($input)) {
+            return in_array($this->containsValue, $input, $this->identical);
+        }
+
+        if (!is_scalar($input) || !is_scalar($this->containsValue)) {
+            return false;
+        }
+
+        return $this->validateString((string) $input, (string) $this->containsValue);
+    }
+
+    private function validateString(string $haystack, string $needle): bool
+    {
+        if ($needle === '') {
+            return false;
+        }
+
+        $encoding = (string) mb_detect_encoding($haystack);
+        if ($this->identical) {
+            return mb_strpos($haystack, $needle, 0, $encoding) !== false;
+        }
+
+        return mb_stripos($haystack, $needle, 0, $encoding) !== false;
+    }
+}