php 按日期格式保存日志到本地服务器

 public static function zlog($data)
    {
        $path = ROOT_PATH . '/data/logs/' . date("Y-m");
        if (!is_dir($path))
            mkdir($path);
        $filename = $path . '/' . date("d") . '.log';
        $info_text = '[' . date('Y-m-d H:i:s') . '] ';
        if (is_array($data) || is_object($data))
            $info_text .= var_export($data, TRUE);
        else
            $info_text .= $data;
        error_log($info_text . "\r\n", 3, $filename);
    }

ps: 调用 // self::zlog('Request:' . $url); // self::zlog('Response:' . $net->body());