Merge pull request #4 from Schlue/FRAMEWORK_6_0

added __serialize

lib/Horde/Smtp.php

@@ -218,19 +218,33 @@ public function __clone()
     {
         throw new LogicException('Object cannot be cloned.');
     }
-
     /**
      */
     public function serialize()
     {
-        return serialize($this->_params);
+        return serialize($this->__serialize());
     }
 
     /**
      */
     public function unserialize($data)
     {
-        $this->_params = @unserialize($data);
+        $this->__unserialize(unserialize($data));
+    }
+
+    /**
+     * @return array
+     */
+    public function __serialize()
+    {
+        return $this->_params;
+    }
+
+    /**
+     */
+    public function __unserialize(array $data)
+    {
+        $this->_params = $data;
         $this->_initOb();
     }