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system/Entity/Cast/ArrayCast.php

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+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class ArrayCast
+ */
+class ArrayCast extends BaseCast
+{
+    /**
+     * {@inheritDoc}
+     */
+    public static function get($value, array $params = []): array
+    {
+        if (is_string($value) && (strpos($value, 'a:') === 0 || strpos($value, 's:') === 0)) {
+            $value = unserialize($value);
+        }
+
+        return (array) $value;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public static function set($value, array $params = []): string
+    {
+        return serialize($value);
+    }
+}