Adapter/File.php
protected function setRaw($Key, $Val, $expire = 0)
    {
        $CacheFile = $this->getCacheFile($Key);

        return file_put_contents($CacheFile, serialize($Val)) > 0;
    }
protected function setRaw($Key, $Val, $expire = 0)
    {
        $CacheFile = $this->getCacheFile($Key);

        return file_put_contents($CacheFile, serialize($Val)) > 0;
    }
Store Value to File.
@param string $Key