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system/Cache/Handlers/DummyHandler.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\Cache\Handlers;
+
+use Closure;
+
+/**
+ * Dummy cache handler
+ */
+class DummyHandler extends BaseHandler
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function initialize()
+    {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function get(string $key)
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function remember(string $key, int $ttl, Closure $callback)
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function save(string $key, $value, int $ttl = 60)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function delete(string $key)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function deleteMatching(string $pattern)
+    {
+        return 0;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function increment(string $key, int $offset = 1)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function decrement(string $key, int $offset = 1)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function clean()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getCacheInfo()
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getMetaData(string $key)
+    {
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function isSupported(): bool
+    {
+        return true;
+    }
+}