Initial commit cache

src/Adapter/NullAdapter.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace IQParts\Cache\Adapter;
+
+final class NullAdapter implements CacheAdapterInterface
+{
+
+    /**
+     * @param string $key
+     * @return mixed
+     */
+    public function get(string $key)
+    {
+        return null;
+    }
+
+    /**
+     * @param string $key
+     * @param $value
+     * @param int|null $ttl
+     * @return void
+     */
+    public function set(string $key, $value, int $ttl = null)
+    {
+    }
+
+    /**
+     * @param string $key
+     * @return void
+     */
+    public function delete(string $key)
+    {
+    }
+
+    /**
+     * @param string $key
+     * @return mixed
+     */
+    public function keys($key = '')
+    {
+        return [];
+    }
+
+    /**
+     * @param $key
+     * @return int
+     */
+    public function ttl($key): int
+    {
+        return 0;
+    }
+}