# The RRDGraph class

(PECL rrd >= 0.9.0)

## 简介

Class for exporting data from RRD database to image file.

## 类摘要

class RRDGraph {
/* 方法 */
public function __construct(string `$path`)
public function save(): array
public function saveVerbose(): array
public function setOptions(array `$options`): void
}

## 目录

- RRDGraph::__construct — Creates new RRDGraph instance
- RRDGraph::save — Saves the result of query into image
- RRDGraph::saveVerbose — Saves the RRD database query into image and returns the verbose information about generated graph
- RRDGraph::setOptions — Sets the options for rrd graph export

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