Update the RRD database file

# RRDUpdater::update

(PECL rrd >= 0.9.0)

RRDUpdater::update — Update the RRD database file

### Description

public RRDUpdater::update(array `$values`, string `$time` = time() ): bool

Updates the RRD file defined via RRDUpdater::__construct(). The file is updated with a specific values.

### Parameters

`values`
  Data for update. Key is data source name.
`time`
  Time value for updating the RRD with a particular data. Default value is current time.

### Return Values

Returns `true` on success or `false` on failure.

### Errors/Exceptions

Throws a Exception on error.

### Examples

Example #1 RRDUpdater::update() examples

`<?php
$updator = new RRDUpdater("speed.rrd");
//updates the data source "speed" with value "12411"
//for time defined by timestamp "920807700"
$updator->update(array("speed" => "12411"), "920807700");
?>`
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