Adapter/TagcacheAdapter.php
public function get($key)
    {
        $Obj = $this->getRaw($this->buildKey($key));
        if ($Obj instanceof TagcacheObj) {
            $Data = $Obj->getVar($this);
            if ($Data === false) {
                $this->delete($key);
            }

            return $Data;
        }

        return $Obj;
    }
public function get($key)
    {
        $Obj = $this->getRaw($this->buildKey($key));
        if ($Obj instanceof TagcacheObj) {
            $Data = $Obj->getVar($this);
            if ($Data === false) {
                $this->delete($key);
            }

            return $Data;
        }

        return $Obj;
    }
get cache
@param  string $key
@return mixed