Saves the RRD database query into image and returns the verbose information about generated graph

# RRDGraph::saveVerbose

(PECL rrd >= 0.9.0)

RRDGraph::saveVerbose — Saves the RRD database query into image and returns the verbose information about generated graph

### 说明

public function RRDGraph::saveVerbose(): array

Saves the RRD database query into image file defined by method RRDGraph::__construct() and returns the verbose information about generated graph, if "-" is used as image filename, image data are also returned in result array.

### 参数

此函数没有参数。

### 返回值

Returns array with detailed information about generated image, 或者在失败时返回 `false`.

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