Creates new RRDGraph instance

# RRDGraph::__construct

(PECL rrd >= 0.9.0)

RRDGraph::__construct — Creates new RRDGraph instance

### Description

public RRDGraph::__construct(string `$path`)

Creates new RRDGraph instance. This instance is responsible for rendering the result of RRD database query into image.

### Parameters

`path`
  Full path for the newly created image.

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