实现请求缓存1天。

vendor/kevinrob/guzzle-cache-middleware/src/Storage/Psr16CacheStorage.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Kevinrob\GuzzleCache\Storage;
+
+use Kevinrob\GuzzleCache\CacheEntry;
+use Psr\SimpleCache\CacheInterface;
+
+class Psr16CacheStorage implements CacheStorageInterface
+{
+    /**
+     * @var CacheInterface
+     */
+    private $cache;
+
+    public function __construct(CacheInterface $cache)
+    {
+        $this->cache = $cache;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function fetch($key)
+    {
+        $data = $this->cache->get($key);
+        if ($data instanceof CacheEntry) {
+            return $data;
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save($key, CacheEntry $data)
+    {
+        $ttl = $data->getTTL();
+        if ($ttl === 0) {
+        return $this->cache->set($key, $data);
+        }
+        return $this->cache->set($key, $data, $data->getTTL());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        return $this->cache->delete($key);
+    }
+}