src/Storage/File.php
public function write($uid, $mixed) {
        $fp = @fopen($this->dir . '/' . $uid, 'w+');
        if (!$fp) {
            return false;
        }
        $r = fwrite($fp, serialize($mixed));
        fclose($fp);
        return $r;
    }
public function write($uid, $mixed) {
        $fp = @fopen($this->dir . '/' . $uid, 'w+');
        if (!$fp) {
            return false;
        }
        $r = fwrite($fp, serialize($mixed));
        fclose($fp);
        return $r;
    }
Write datas on $uid key
@param mixed $uid
@param mixed $mixed