(PECL rrd >= 0.9.0)
RRDCreator::save — Saves the RRD database to a file
Saves the RRD database into file, which name is defined by RRDCreator::__construct().
此函數(shù)沒有參數(shù)。
成功時返回 true, 或者在失敗時返回 false。
true
false