first commit

autoload/class.CacheHandler.php

@@ -0,0 +1,39 @@
+<?
+class CacheHandler
+{
+    protected $redis;
+
+    public function __construct()
+    {
+        if (class_exists('Redis')) {
+            try {
+                $this->redis = \RedisConnection::getInstance()->getConnection();
+            } catch (\Exception $e) {
+                $this->redis = null;
+            }
+        }
+    }
+
+    public function get($key)
+    {
+        if ($this->redis) {
+            return $this->redis->get($key);
+        }
+        return null;
+    }
+
+    public function set($key, $value, $ttl = 86400) // 86400 = 60 * 60 * 24 (1 dzień)
+    {
+        if ($this->redis) {
+            $this->redis->setex($key, $ttl, serialize($value));
+        }
+    }
+
+    public function exists($key)
+    {
+        if ($this->redis) {
+            return $this->redis->exists($key);
+        }
+        return false;
+    }
+}